--- title: "United Airlines Boeing 737-900 seat map and routes" description: "United Airlines (UA) flies the Boeing 737-900 on 630 nonstop routes across 117 airports in 2LNR's schedule data. Routes and cabin configurations, not a cabin diagram." canonical: "https://2lnr.com/seatmaps/ua/737-900" url: "https://2lnr.com/seatmaps/ua/737-900.md" date_modified: "2026-09-20T02:14:56Z" --- # United Airlines Boeing 737-900 seat maps and routes United Airlines (UA) operates the Boeing 737-900 across 630 nonstop routes and 117 airports in 2LNR's schedule data, which makes it a backbone of the network rather than a specialist assignment. The busiest of those routes are Chicago to Newark, Orlando to Newark, and Phoenix to Chicago. 2LNR does not publish a stored cabin drawing for this aircraft; it reads the live seat map for the specific flight you are looking at, which is the only version that survives an aircraft swap. Updated September 20, 2026. [Get started free](https://2lnr.com/login) [The whole UA fleet](https://2lnr.com/seatmaps/ua.md) 630 Nonstop routes 117 Airports served Per flight How the live map reads ## There is no cabin diagram on this page 2LNR does not publish stored seat diagrams or per-seat comfort ratings, for this aircraft or any other, and it will not invent them. What it has is the live seat map for a specific UA flight and date, read at the moment you ask, on Pro. That is a different thing from a drawing of the type, and it is the only version that survives an aircraft swap. If a diagram is what you came for, a maintained library such as [AeroLOPA](https://www.aerolopa.com/) is the right tool. ## What is on this page Every nonstop route United Airlines currently schedules the Boeing 737-900 on, taken from the flight schedules 2LNR collects continuously. The aircraft is a Boeing 737-900, a narrowbody. UA files it as 739 in its schedules; those spellings are treated as one aircraft here rather than as separate types. ## Where UA flies the Boeing 737-900 630 nonstop routes across 117 airports, grouped by departure city. A route appears here when UA has scheduled this aircraft on it; most routes see more than one type across a season. ### Albany (ALB) - [Albany (ALB) to Chicago (ORD)](https://2lnr.com/routes/alb-ord.md) ### Austin (AUS) - [Austin (AUS) to Chicago (ORD)](https://2lnr.com/routes/aus-ord.md) ### Baltimore (BWI) - [Baltimore (BWI) to Chicago (ORD)](https://2lnr.com/routes/bwi-ord.md) - [Baltimore (BWI) to Los Angeles (LAX)](https://2lnr.com/routes/bwi-lax.md) ### Boise (BOI) - [Boise (BOI) to Denver (DEN)](https://2lnr.com/routes/boi-den.md) ### Boston (BOS) - [Boston (BOS) to Chicago (ORD)](https://2lnr.com/routes/bos-ord.md) - [Boston (BOS) to Houston (IAH)](https://2lnr.com/routes/bos-iah.md) - [Boston (BOS) to Newark (EWR)](https://2lnr.com/routes/bos-ewr.md) - [Boston (BOS) to Washington (IAD)](https://2lnr.com/routes/bos-iad.md) ### Bozeman (BZN) - [Bozeman (BZN) to Denver (DEN)](https://2lnr.com/routes/bzn-den.md) ### Calgary (YYC) - [Calgary (YYC) to Denver (DEN)](https://2lnr.com/routes/yyc-den.md) ### Cancun (CUN) - [Cancun (CUN) to Chicago (ORD)](https://2lnr.com/routes/cun-ord.md) - [Cancun (CUN) to Houston (IAH)](https://2lnr.com/routes/cun-iah.md) - [Cancun (CUN) to Los Angeles (LAX)](https://2lnr.com/routes/cun-lax.md) - [Cancun (CUN) to Newark (EWR)](https://2lnr.com/routes/cun-ewr.md) ### Chicago (ORD) - [Chicago (ORD) to Albany (ALB)](https://2lnr.com/routes/ord-alb.md) - [Chicago (ORD) to Austin (AUS)](https://2lnr.com/routes/ord-aus.md) - [Chicago (ORD) to Boston (BOS)](https://2lnr.com/routes/ord-bos.md) - [Chicago (ORD) to Cancun (CUN)](https://2lnr.com/routes/ord-cun.md) - [Chicago (ORD) to Columbus (CMH)](https://2lnr.com/routes/ord-cmh.md) - [Chicago (ORD) to Denver (DEN)](https://2lnr.com/routes/ord-den.md) - [Chicago (ORD) to Fort Lauderdale (FLL)](https://2lnr.com/routes/ord-fll.md) - [Chicago (ORD) to Fort Myers (RSW)](https://2lnr.com/routes/ord-rsw.md) - [Chicago (ORD) to Grand Rapids (GRR)](https://2lnr.com/routes/ord-grr.md) - [Chicago (ORD) to Hartford (BDL)](https://2lnr.com/routes/ord-bdl.md) - [Chicago (ORD) to Houston (IAH)](https://2lnr.com/routes/ord-iah.md) - [Chicago (ORD) to Las Vegas (LAS)](https://2lnr.com/routes/ord-las.md) - [Chicago (ORD) to Miami (MIA)](https://2lnr.com/routes/ord-mia.md) - [Chicago (ORD) to Minneapolis (MSP)](https://2lnr.com/routes/ord-msp.md) - [Chicago (ORD) to Nashville (BNA)](https://2lnr.com/routes/ord-bna.md) - [Chicago (ORD) to Newark (EWR)](https://2lnr.com/routes/ord-ewr.md) - [Chicago (ORD) to Oranjestad (AUA)](https://2lnr.com/routes/ord-aua.md) - [Chicago (ORD) to Orlando (MCO)](https://2lnr.com/routes/ord-mco.md) - [Chicago (ORD) to Philadelphia (PHL)](https://2lnr.com/routes/ord-phl.md) - [Chicago (ORD) to Phoenix (PHX)](https://2lnr.com/routes/ord-phx.md) - [Chicago (ORD) to Rochester (ROC)](https://2lnr.com/routes/ord-roc.md) - [Chicago (ORD) to Sacramento (SMF)](https://2lnr.com/routes/ord-smf.md) - [Chicago (ORD) to San Diego (SAN)](https://2lnr.com/routes/ord-san.md) - [Chicago (ORD) to San Francisco (SFO)](https://2lnr.com/routes/ord-sfo.md) - [Chicago (ORD) to Seattle (SEA)](https://2lnr.com/routes/ord-sea.md) - [Chicago (ORD) to Tampa (TPA)](https://2lnr.com/routes/ord-tpa.md) - [Chicago (ORD) to Toronto (YYZ)](https://2lnr.com/routes/ord-yyz.md) - [Chicago (ORD) to Washington (IAD)](https://2lnr.com/routes/ord-iad.md) ### Columbus (CMH) - [Columbus (CMH) to Denver (DEN)](https://2lnr.com/routes/cmh-den.md) ### Denver (DEN) - [Denver (DEN) to Boise (BOI)](https://2lnr.com/routes/den-boi.md) - [Denver (DEN) to Bozeman (BZN)](https://2lnr.com/routes/den-bzn.md) - [Denver (DEN) to Calgary (YYC)](https://2lnr.com/routes/den-yyc.md) - [Denver (DEN) to Cancun (CUN)](https://2lnr.com/routes/den-cun.md) - [Denver (DEN) to Chicago (ORD)](https://2lnr.com/routes/den-ord.md) - [Denver (DEN) to Fairfax (CID)](https://2lnr.com/routes/den-cid.md) - [Denver (DEN) to Fort Lauderdale (FLL)](https://2lnr.com/routes/den-fll.md) - [Denver (DEN) to Houston (IAH)](https://2lnr.com/routes/den-iah.md) - [Denver (DEN) to Las Vegas (LAS)](https://2lnr.com/routes/den-las.md) - [Denver (DEN) to Los Angeles (LAX)](https://2lnr.com/routes/den-lax.md) - [Denver (DEN) to Minneapolis (MSP)](https://2lnr.com/routes/den-msp.md) - [Denver (DEN) to Newark (EWR)](https://2lnr.com/routes/den-ewr.md) - [Denver (DEN) to Omaha (OMA)](https://2lnr.com/routes/den-oma.md) - [Denver (DEN) to Phoenix (PHX)](https://2lnr.com/routes/den-phx.md) - [Denver (DEN) to Portland (PDX)](https://2lnr.com/routes/den-pdx.md) - [Denver (DEN) to Rapid City (RAP)](https://2lnr.com/routes/den-rap.md) - [Denver (DEN) to Sacramento (SMF)](https://2lnr.com/routes/den-smf.md) - [Denver (DEN) to Salt Lake City (SLC)](https://2lnr.com/routes/den-slc.md) - [Denver (DEN) to San Diego (SAN)](https://2lnr.com/routes/den-san.md) - [Denver (DEN) to Seattle (SEA)](https://2lnr.com/routes/den-sea.md) - [Denver (DEN) to Washington (IAD)](https://2lnr.com/routes/den-iad.md) ### DJT - DJT to Newark (EWR) ### Fort Lauderdale (FLL) - [Fort Lauderdale (FLL) to Chicago (ORD)](https://2lnr.com/routes/fll-ord.md) - [Fort Lauderdale (FLL) to Denver (DEN)](https://2lnr.com/routes/fll-den.md) - [Fort Lauderdale (FLL) to Houston (IAH)](https://2lnr.com/routes/fll-iah.md) - [Fort Lauderdale (FLL) to Newark (EWR)](https://2lnr.com/routes/fll-ewr.md) ### Fort Myers (RSW) - [Fort Myers (RSW) to Chicago (ORD)](https://2lnr.com/routes/rsw-ord.md) - [Fort Myers (RSW) to Denver (DEN)](https://2lnr.com/routes/rsw-den.md) - [Fort Myers (RSW) to Houston (IAH)](https://2lnr.com/routes/rsw-iah.md) ### Grand Rapids (GRR) - [Grand Rapids (GRR) to Chicago (ORD)](https://2lnr.com/routes/grr-ord.md) ### Hartford (BDL) - [Hartford (BDL) to Chicago (ORD)](https://2lnr.com/routes/bdl-ord.md) ### Houston (IAH) - [Houston (IAH) to Austin (AUS)](https://2lnr.com/routes/iah-aus.md) - [Houston (IAH) to Baltimore (BWI)](https://2lnr.com/routes/iah-bwi.md) - [Houston (IAH) to Cancun (CUN)](https://2lnr.com/routes/iah-cun.md) - [Houston (IAH) to Chicago (ORD)](https://2lnr.com/routes/iah-ord.md) - [Houston (IAH) to Denver (DEN)](https://2lnr.com/routes/iah-den.md) - [Houston (IAH) to Fort Lauderdale (FLL)](https://2lnr.com/routes/iah-fll.md) - [Houston (IAH) to Fort Myers (RSW)](https://2lnr.com/routes/iah-rsw.md) - [Houston (IAH) to Las Vegas (LAS)](https://2lnr.com/routes/iah-las.md) - [Houston (IAH) to Los Angeles (LAX)](https://2lnr.com/routes/iah-lax.md) - [Houston (IAH) to McAllen (MFE)](https://2lnr.com/routes/iah-mfe.md) - [Houston (IAH) to Miami (MIA)](https://2lnr.com/routes/iah-mia.md) - [Houston (IAH) to New Orleans (MSY)](https://2lnr.com/routes/iah-msy.md) - [Houston (IAH) to Newark (EWR)](https://2lnr.com/routes/iah-ewr.md) - [Houston (IAH) to Oklahoma City (OKC)](https://2lnr.com/routes/iah-okc.md) - [Houston (IAH) to Orlando (MCO)](https://2lnr.com/routes/iah-mco.md) - [Houston (IAH) to Panama City (PTY)](https://2lnr.com/routes/iah-pty.md) - [Houston (IAH) to Phoenix (PHX)](https://2lnr.com/routes/iah-phx.md) - [Houston (IAH) to Sacramento (SMF)](https://2lnr.com/routes/iah-smf.md) - [Houston (IAH) to San Antonio (SAT)](https://2lnr.com/routes/iah-sat.md) - [Houston (IAH) to San Diego (SAN)](https://2lnr.com/routes/iah-san.md) - [Houston (IAH) to San Francisco (SFO)](https://2lnr.com/routes/iah-sfo.md) - [Houston (IAH) to Tampa (TPA)](https://2lnr.com/routes/iah-tpa.md) - [Houston (IAH) to Tulsa (TUL)](https://2lnr.com/routes/iah-tul.md) - [Houston (IAH) to Washington (IAD)](https://2lnr.com/routes/iah-iad.md) ### Jacksonville (JAX) - [Jacksonville (JAX) to Washington (IAD)](https://2lnr.com/routes/jax-iad.md) ### Las Vegas (LAS) - [Las Vegas (LAS) to Chicago (ORD)](https://2lnr.com/routes/las-ord.md) - [Las Vegas (LAS) to Denver (DEN)](https://2lnr.com/routes/las-den.md) - [Las Vegas (LAS) to Houston (IAH)](https://2lnr.com/routes/las-iah.md) - [Las Vegas (LAS) to Los Angeles (LAX)](https://2lnr.com/routes/las-lax.md) - [Las Vegas (LAS) to San Francisco (SFO)](https://2lnr.com/routes/las-sfo.md) ### Los Angeles (LAX) - [Los Angeles (LAX) to Cancun (CUN)](https://2lnr.com/routes/lax-cun.md) - [Los Angeles (LAX) to Denver (DEN)](https://2lnr.com/routes/lax-den.md) - [Los Angeles (LAX) to Houston (IAH)](https://2lnr.com/routes/lax-iah.md) - [Los Angeles (LAX) to Las Vegas (LAS)](https://2lnr.com/routes/lax-las.md) - [Los Angeles (LAX) to Sacramento (SMF)](https://2lnr.com/routes/lax-smf.md) - [Los Angeles (LAX) to San Francisco (SFO)](https://2lnr.com/routes/lax-sfo.md) - [Los Angeles (LAX) to Washington (IAD)](https://2lnr.com/routes/lax-iad.md) ### Madison (MSN) - [Madison (MSN) to Chicago (ORD)](https://2lnr.com/routes/msn-ord.md) - [Madison (MSN) to Denver (DEN)](https://2lnr.com/routes/msn-den.md) ### Miami (MIA) - [Miami (MIA) to Houston (IAH)](https://2lnr.com/routes/mia-iah.md) - [Miami (MIA) to Newark (EWR)](https://2lnr.com/routes/mia-ewr.md) ### Minneapolis (MSP) - [Minneapolis (MSP) to Chicago (ORD)](https://2lnr.com/routes/msp-ord.md) ### Montego Bay (MBJ) - [Montego Bay (MBJ) to Newark (EWR)](https://2lnr.com/routes/mbj-ewr.md) ### Nashville (BNA) - [Nashville (BNA) to Denver (DEN)](https://2lnr.com/routes/bna-den.md) - [Nashville (BNA) to Newark (EWR)](https://2lnr.com/routes/bna-ewr.md) ### New Orleans (MSY) - [New Orleans (MSY) to Chicago (ORD)](https://2lnr.com/routes/msy-ord.md) - [New Orleans (MSY) to Denver (DEN)](https://2lnr.com/routes/msy-den.md) - [New Orleans (MSY) to Houston (IAH)](https://2lnr.com/routes/msy-iah.md) - [New Orleans (MSY) to San Francisco (SFO)](https://2lnr.com/routes/msy-sfo.md) ### Newark (EWR) - [Newark (EWR) to Austin (AUS)](https://2lnr.com/routes/ewr-aus.md) - [Newark (EWR) to Boston (BOS)](https://2lnr.com/routes/ewr-bos.md) - [Newark (EWR) to Chicago (ORD)](https://2lnr.com/routes/ewr-ord.md) - [Newark (EWR) to Dallas (DFW)](https://2lnr.com/routes/ewr-dfw.md) - [Newark (EWR) to Denver (DEN)](https://2lnr.com/routes/ewr-den.md) - Newark (EWR) to DJT - [Newark (EWR) to Fort Lauderdale (FLL)](https://2lnr.com/routes/ewr-fll.md) - [Newark (EWR) to Fort Myers (RSW)](https://2lnr.com/routes/ewr-rsw.md) - [Newark (EWR) to Houston (IAH)](https://2lnr.com/routes/ewr-iah.md) - [Newark (EWR) to Miami (MIA)](https://2lnr.com/routes/ewr-mia.md) - [Newark (EWR) to Orlando (MCO)](https://2lnr.com/routes/ewr-mco.md) - [Newark (EWR) to Phoenix (PHX)](https://2lnr.com/routes/ewr-phx.md) - [Newark (EWR) to Raleigh/Durham (RDU)](https://2lnr.com/routes/ewr-rdu.md) - [Newark (EWR) to Savannah (SAV)](https://2lnr.com/routes/ewr-sav.md) - [Newark (EWR) to Tampa (TPA)](https://2lnr.com/routes/ewr-tpa.md) - [Newark (EWR) to Washington (IAD)](https://2lnr.com/routes/ewr-iad.md) - [Newark (EWR) to West Palm Beach (PBI)](https://2lnr.com/routes/ewr-pbi.md) ### Omaha (OMA) - [Omaha (OMA) to Chicago (ORD)](https://2lnr.com/routes/oma-ord.md) ### Ontario (ONT) - [Ontario (ONT) to Houston (IAH)](https://2lnr.com/routes/ont-iah.md) ### Oranjestad (AUA) - [Oranjestad (AUA) to Chicago (ORD)](https://2lnr.com/routes/aua-ord.md) ### Orlando (MCO) - [Orlando (MCO) to Chicago (ORD)](https://2lnr.com/routes/mco-ord.md) - [Orlando (MCO) to Houston (IAH)](https://2lnr.com/routes/mco-iah.md) - [Orlando (MCO) to Newark (EWR)](https://2lnr.com/routes/mco-ewr.md) - [Orlando (MCO) to Washington (IAD)](https://2lnr.com/routes/mco-iad.md) ### Panama City (PTY) - [Panama City (PTY) to Houston (IAH)](https://2lnr.com/routes/pty-iah.md) ### Philadelphia (PHL) - [Philadelphia (PHL) to Chicago (ORD)](https://2lnr.com/routes/phl-ord.md) - [Philadelphia (PHL) to Denver (DEN)](https://2lnr.com/routes/phl-den.md) ### Phoenix (PHX) - [Phoenix (PHX) to Chicago (ORD)](https://2lnr.com/routes/phx-ord.md) - [Phoenix (PHX) to Denver (DEN)](https://2lnr.com/routes/phx-den.md) - [Phoenix (PHX) to Houston (IAH)](https://2lnr.com/routes/phx-iah.md) - [Phoenix (PHX) to Newark (EWR)](https://2lnr.com/routes/phx-ewr.md) - [Phoenix (PHX) to San Francisco (SFO)](https://2lnr.com/routes/phx-sfo.md) ### Pittsburgh (PIT) - [Pittsburgh (PIT) to Houston (IAH)](https://2lnr.com/routes/pit-iah.md) ### Portland (PDX) - [Portland (PDX) to Denver (DEN)](https://2lnr.com/routes/pdx-den.md) ### Punta Cana (PUJ) - [Punta Cana (PUJ) to Washington (IAD)](https://2lnr.com/routes/puj-iad.md) ### Raleigh/Durham (RDU) - [Raleigh/Durham (RDU) to Chicago (ORD)](https://2lnr.com/routes/rdu-ord.md) - [Raleigh/Durham (RDU) to Houston (IAH)](https://2lnr.com/routes/rdu-iah.md) - [Raleigh/Durham (RDU) to Newark (EWR)](https://2lnr.com/routes/rdu-ewr.md) ### Sacramento (SMF) - [Sacramento (SMF) to Chicago (ORD)](https://2lnr.com/routes/smf-ord.md) - [Sacramento (SMF) to Denver (DEN)](https://2lnr.com/routes/smf-den.md) - [Sacramento (SMF) to Houston (IAH)](https://2lnr.com/routes/smf-iah.md) - [Sacramento (SMF) to Los Angeles (LAX)](https://2lnr.com/routes/smf-lax.md) ### San Antonio (SAT) - [San Antonio (SAT) to Houston (IAH)](https://2lnr.com/routes/sat-iah.md) ### San Diego (SAN) - [San Diego (SAN) to Denver (DEN)](https://2lnr.com/routes/san-den.md) - [San Diego (SAN) to Houston (IAH)](https://2lnr.com/routes/san-iah.md) - [San Diego (SAN) to San Francisco (SFO)](https://2lnr.com/routes/san-sfo.md) - [San Diego (SAN) to Washington (IAD)](https://2lnr.com/routes/san-iad.md) ### San Francisco (SFO) - [San Francisco (SFO) to Calgary (YYC)](https://2lnr.com/routes/sfo-yyc.md) - [San Francisco (SFO) to Houston (IAH)](https://2lnr.com/routes/sfo-iah.md) - [San Francisco (SFO) to Las Vegas (LAS)](https://2lnr.com/routes/sfo-las.md) - [San Francisco (SFO) to Los Angeles (LAX)](https://2lnr.com/routes/sfo-lax.md) - [San Francisco (SFO) to New Orleans (MSY)](https://2lnr.com/routes/sfo-msy.md) - [San Francisco (SFO) to Phoenix (PHX)](https://2lnr.com/routes/sfo-phx.md) - [San Francisco (SFO) to Vancouver (YVR)](https://2lnr.com/routes/sfo-yvr.md) ### San Jose (SJC) - [San Jose (SJC) to Denver (DEN)](https://2lnr.com/routes/sjc-den.md) ### Savannah (SAV) - [Savannah (SAV) to Newark (EWR)](https://2lnr.com/routes/sav-ewr.md) ### Seattle (SEA) - [Seattle (SEA) to Chicago (ORD)](https://2lnr.com/routes/sea-ord.md) - [Seattle (SEA) to Houston (IAH)](https://2lnr.com/routes/sea-iah.md) - [Seattle (SEA) to Washington (IAD)](https://2lnr.com/routes/sea-iad.md) ### South Burlington (BTV) - [South Burlington (BTV) to Chicago (ORD)](https://2lnr.com/routes/btv-ord.md) ### Tampa (TPA) - [Tampa (TPA) to Chicago (ORD)](https://2lnr.com/routes/tpa-ord.md) - [Tampa (TPA) to Denver (DEN)](https://2lnr.com/routes/tpa-den.md) - [Tampa (TPA) to Houston (IAH)](https://2lnr.com/routes/tpa-iah.md) - [Tampa (TPA) to Newark (EWR)](https://2lnr.com/routes/tpa-ewr.md) ### Toronto (YYZ) - [Toronto (YYZ) to Chicago (ORD)](https://2lnr.com/routes/yyz-ord.md) ### Tulsa (TUL) - [Tulsa (TUL) to Houston (IAH)](https://2lnr.com/routes/tul-iah.md) ### Washington (IAD) - [Washington (IAD) to Boston (BOS)](https://2lnr.com/routes/iad-bos.md) - [Washington (IAD) to Chicago (ORD)](https://2lnr.com/routes/iad-ord.md) - [Washington (IAD) to Denver (DEN)](https://2lnr.com/routes/iad-den.md) - [Washington (IAD) to Houston (IAH)](https://2lnr.com/routes/iad-iah.md) - [Washington (IAD) to Los Angeles (LAX)](https://2lnr.com/routes/iad-lax.md) - [Washington (IAD) to Newark (EWR)](https://2lnr.com/routes/iad-ewr.md) - [Washington (IAD) to Orlando (MCO)](https://2lnr.com/routes/iad-mco.md) - [Washington (IAD) to San Francisco (SFO)](https://2lnr.com/routes/iad-sfo.md) - [Washington (IAD) to Seattle (SEA)](https://2lnr.com/routes/iad-sea.md) ### West Palm Beach (PBI) - [West Palm Beach (PBI) to Newark (EWR)](https://2lnr.com/routes/pbi-ewr.md) Showing the 200 busiest of 630 routes. The remaining 430 are on the [UA route map](https://2lnr.com/routes/airlines/ua.md). ## Related - [The whole United Airlines fleet](https://2lnr.com/seatmaps/ua.md) - [Where UA flies: the United Airlines route map](https://2lnr.com/routes/airlines/ua.md) - [How to read an airline seat map](https://2lnr.com/guides/airline-seat-maps.md) - [An honest SeatGuru alternative](https://2lnr.com/compare/seatguru.md) ## Frequently asked questions about the UA Boeing 737-900 **Where does United Airlines fly the Boeing 737-900?** On 630 nonstop routes touching 117 airports in 2LNR's schedule data, Chicago to Newark, Orlando to Newark, and Phoenix to Chicago among the busiest. The full list is on this page, grouped by departure city, and each route opens that city pair's own page. Schedules move seasonally, so this reflects what UA currently has filed rather than a permanent assignment. **Can I see the Boeing 737-900 seat map for a UA flight?** Yes, on Pro, and it is the live map for the specific flight and date rather than a drawing of the type. 2LNR scores the open seats inside your cabin, marks paid seats as paid, and can keep watching for a better one. That is deliberately different from a static Boeing 737-900 diagram, which cannot tell you whether 12A is free or whether the aircraft was swapped. **Is the Boeing 737-900 the only aircraft on these UA routes?** No. A route appears here when UA has scheduled the Boeing 737-900 on it, and most routes see more than one aircraft type across a season or even a day. That is exactly why 2LNR reads the map per flight: the honest answer to which cabin you will get is a per-departure answer, not a per-route one. **Does 2LNR have seat ratings for the Boeing 737-900?** Not as a published library of per-seat comfort ratings for the Boeing 737-900, and this page will not invent them. What 2LNR scores is the seats actually open in your cabin on your UA flight, so the answer is a seat you can select rather than a general opinion about a row. For browsing a Boeing 737-900 cabin layout on an aircraft you have not booked, a maintained diagram library such as AeroLOPA remains the better tool. ## See the seats on your UA flight Free to start. Pro adds the live per-flight seat map and seat monitoring. [Get started free](https://2lnr.com/login) [See pricing](https://2lnr.com/pricing.md)