--- title: "Boston (BOS) to Denver (DEN) flights: who flies it" description: "Delta Air Lines, JetBlue Airways and United Airlines fly nonstop from BOS to DEN, about 57 flights a week. Upgrade and award space by date on 2LNR, next 14 days free." canonical: "https://2lnr.com/routes/bos-den" url: "https://2lnr.com/routes/bos-den.md" date_modified: "2026-10-18T05:10:47Z" --- # Boston to Denver (BOS-DEN): nonstop upgrade & award space United Airlines, JetBlue Airways, and Delta Air Lines fly nonstop between Boston (BOS) and Denver (DEN), roughly 57 times a week. The timetable below shows the nonstop scheduled at 4h 31m to 4h 51m for the 1,750 miles. 2LNR checks confirmed upgrade and award space on Delta Air Lines flights on this route, so you can see which departures have space before you book. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 22, 2026. See BOS to DEN on the interactive map [Get started free](https://2lnr.com/login) 57 Flights a week, 4-week average 4h 31m to 4h 51m Scheduled flight time 1,750 mi Nonstop distance Free To get started ## Boston to Denver flight schedule Scheduled nonstop departures for BOS to DEN starting October 21, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Boston (BOS) to Denver (DEN) | Date | Flight | Airline | Departs BOS | Arrives DEN | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Wed, Oct 21 | UA 647 | United Airlines | 07:30 | 10:05 | 4h 35m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md) | | Wed, Oct 21 | DL 499 | Delta Air Lines | 07:40 | 10:18 | 4h 38m | [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md) | | Wed, Oct 21 | B6 393 | JetBlue Airways | 09:10 | 11:42 | 4h 32m | [Airbus A220-300](https://2lnr.com/seatmaps/b6/a220-300.md) | | Wed, Oct 21 | UA 2348 | United Airlines | 09:30 | 12:04 | 4h 34m | [Airbus A321neo family](https://2lnr.com/seatmaps/ua/a321neo.md) | | Wed, Oct 21 | B6 993 | JetBlue Airways | 10:38 | 13:10 | 4h 32m | Airbus A220-300 | | Wed, Oct 21 | UA 414 | United Airlines | 11:44 | 14:18 | 4h 34m | Airbus A321neo family | | Wed, Oct 21 | UA 2297 | United Airlines | 15:15 | 17:49 | 4h 34m | Airbus A321neo family | | Wed, Oct 21 | UA 800 | United Airlines | 17:08 | 19:45 | 4h 37m | Airbus A321neo family | | Wed, Oct 21 | UA 1932 | United Airlines | 20:50 | 23:21 | 4h 31m | Boeing 737 MAX 9 | | Thu, Oct 22 | DL 499 | Delta Air Lines | 07:40 | 10:18 | 4h 38m | Airbus A321neo family | | Thu, Oct 22 | UA 647 | United Airlines | 07:45 | 10:22 | 4h 37m | Airbus A321neo family | | Thu, Oct 22 | B6 393 | JetBlue Airways | 09:10 | 11:42 | 4h 32m | Airbus A220-300 | | Thu, Oct 22 | UA 2348 | United Airlines | 09:30 | 12:04 | 4h 34m | Airbus A321neo family | | Thu, Oct 22 | B6 993 | JetBlue Airways | 10:38 | 13:10 | 4h 32m | Airbus A220-300 | | Thu, Oct 22 | UA 414 | United Airlines | 11:44 | 14:18 | 4h 34m | Airbus A321neo family | | Thu, Oct 22 | UA 2297 | United Airlines | 15:15 | 17:49 | 4h 34m | Airbus A321neo family | | Thu, Oct 22 | UA 800 | United Airlines | 17:08 | 19:45 | 4h 37m | Airbus A321neo family | | Thu, Oct 22 | UA 1932 | United Airlines | 20:50 | 23:21 | 4h 31m | Boeing 737 MAX 9 | | Fri, Oct 23 | DL 499 | Delta Air Lines | 07:40 | 10:18 | 4h 38m | Airbus A321neo family | | Fri, Oct 23 | UA 647 | United Airlines | 07:45 | 10:22 | 4h 37m | Airbus A321neo family | | Fri, Oct 23 | B6 393 | JetBlue Airways | 09:10 | 11:42 | 4h 32m | Airbus A220-300 | | Fri, Oct 23 | UA 2348 | United Airlines | 09:30 | 12:04 | 4h 34m | Airbus A321neo family | | Fri, Oct 23 | B6 993 | JetBlue Airways | 10:31 | 13:03 | 4h 32m | Airbus A220-300 | | Fri, Oct 23 | UA 414 | United Airlines | 11:44 | 14:18 | 4h 34m | Airbus A321neo family | | Fri, Oct 23 | UA 2297 | United Airlines | 15:15 | 17:47 | 4h 32m | [Boeing 737-900](https://2lnr.com/seatmaps/ua/737-900.md) | | Fri, Oct 23 | UA 800 | United Airlines | 17:08 | 19:45 | 4h 37m | Airbus A321neo family | | Fri, Oct 23 | UA 1932 | United Airlines | 20:50 | 23:21 | 4h 31m | Boeing 737 MAX 9 | | Sat, Oct 24 | DL 499 | Delta Air Lines | 07:40 | 10:18 | 4h 38m | Airbus A321neo family | | Sat, Oct 24 | UA 647 | United Airlines | 07:45 | 10:22 | 4h 37m | Airbus A321neo family | | Sat, Oct 24 | B6 393 | JetBlue Airways | 09:10 | 11:42 | 4h 32m | Airbus A220-300 | | Sat, Oct 24 | UA 2348 | United Airlines | 09:30 | 12:04 | 4h 34m | Airbus A321neo family | | Sat, Oct 24 | B6 993 | JetBlue Airways | 10:38 | 13:10 | 4h 32m | Airbus A220-300 | | Sat, Oct 24 | UA 414 | United Airlines | 11:44 | 14:18 | 4h 34m | Airbus A321neo family | | Sat, Oct 24 | UA 2297 | United Airlines | 15:15 | 17:49 | 4h 34m | Airbus A321neo family | | Sun, Oct 25 | UA 2814 | United Airlines | 07:15 | 10:04 | 4h 49m | Airbus A321neo family | | Sun, Oct 25 | DL 499 | Delta Air Lines | 07:40 | 10:18 | 4h 38m | Airbus A321neo family | | Sun, Oct 25 | B6 393 | JetBlue Airways | 08:24 | 11:15 | 4h 51m | Airbus A220-300 | | Sun, Oct 25 | UA 2348 | United Airlines | 09:30 | 12:04 | 4h 34m | Airbus A321neo family | | Sun, Oct 25 | B6 993 | JetBlue Airways | 10:22 | 13:10 | 4h 48m | Airbus A220-300 | | Sun, Oct 25 | UA 414 | United Airlines | 11:44 | 14:18 | 4h 34m | Airbus A321neo family | Showing the first 40 of 59 scheduled BOS to DEN departures across 7 days with service, starting October 21, 2026. Every remaining date is on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every BOS to DEN date on the interactive map ## Aircraft on the Boston to Denver nonstop In the schedule table on this page, United Airlines flies the [Airbus A321neo family](https://2lnr.com/seatmaps/ua/a321neo.md), the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md), and the [Boeing 737-900](https://2lnr.com/seatmaps/ua/737-900.md). JetBlue Airways flies the [Airbus A220-300](https://2lnr.com/seatmaps/b6/a220-300.md). Delta Air Lines flies the [Airbus A321neo family](https://2lnr.com/seatmaps/dl/a321neo.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## Confirmed upgrade & award space on BOS to DEN departures 2LNR tracks confirmed upgrade and award space on Delta Air Lines, segment by segment and date by date. Open the calendar for Boston to Denver to see which departures have space, the next 14 days free on every product and the full horizon on Pro. In the 7 days to October 19, 2026, 2LNR checked award space on Boston to Denver departures from October 19 to November 1. JetBlue Airways had space open on 6 of 14 dates checked and Delta Air Lines on 13 of 14. ### See real availability Confirmed upgrade or award seats by date on the BOS to DEN departures 2LNR tracks, checked against live inventory so you know what's open before you book. ### Set an alert Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking. ### Plan on the map See BOS to DEN on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Boston to Denver nonstop Carriers operating BOS to DEN nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show confirmed upgrade or award space by date. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) - [JetBlue Airways (B6) route map](https://2lnr.com/routes/airlines/b6.md)\ [The aircraft B6 flies](https://2lnr.com/seatmaps/b6.md) - [Delta Air Lines (DL) route map](https://2lnr.com/routes/airlines/dl.md)\ [The aircraft DL flies](https://2lnr.com/seatmaps/dl.md) See BOS to DEN on the interactive map → ## Frequently asked questions about BOS to DEN **How long is the flight from Boston (BOS) to Denver (DEN)?** Scheduled flight times from Boston (BOS) to Denver (DEN) run from 4h 31m to 4h 51m across the departures in the schedule table on this page. The nonstop covers about 1,750 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BOS to DEN?** United Airlines, JetBlue Airways, and Delta Air Lines fly BOS to DEN nonstop. 2LNR tracks confirmed upgrade and award space on Delta Air Lines, and award seats on JetBlue Airways. **How many flights a week are there from BOS to DEN?** About 57 nonstop flights a week run between Boston (BOS) and Denver (DEN) in the current schedule, operated by United Airlines, JetBlue Airways, and Delta Air Lines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BOS to DEN depart?** Scheduled BOS to DEN nonstops in the next 7 days with service leave between 07:15 and 20:50, local time at Boston. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate BOS to DEN nonstop?** The schedule table on this page lists 10 flight numbers for BOS to DEN nonstops, including UA 414, UA 647, UA 800, UA 2297, and UA 2348 on United Airlines; B6 393 and B6 993 on JetBlue Airways; and DL 499 on Delta Air Lines. The table lists each departure by date with its times and aircraft. **How do I check upgrade or award availability on BOS to DEN?** Open the BOS to DEN route on the interactive map or the matrix to see confirmed upgrade and award space by date on Delta Air Lines, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens. Flying the other way? See [DEN to BOS upgrade and award space](https://2lnr.com/routes/den-bos.md). Award seats rather than schedules? See [JetBlue Airways award availability](https://2lnr.com/awards/b6.md) or [Delta Air Lines award availability](https://2lnr.com/awards/dl.md). Looking beyond this route? See [every route from Boston (BOS)](https://2lnr.com/routes/bos.md), or [every route from Denver (DEN)](https://2lnr.com/routes/den.md). Nonstops to Denver (DEN) from other airports within 150 miles of Boston (BOS): - [Hartford (BDL) to Denver (DEN)](https://2lnr.com/routes/bdl-den.md), 90 miles from BOS - [South Portland Gardens (PWM) to Denver (DEN)](https://2lnr.com/routes/pwm-den.md), 95 miles from BOS - [Albany (ALB) to Denver (DEN)](https://2lnr.com/routes/alb-den.md), 145 miles from BOS Nonstops from Boston (BOS) to other airports within 150 miles of Denver (DEN): - [Boston (BOS) to Hayden (HDN)](https://2lnr.com/routes/bos-hdn.md), 141 miles from DEN Distances are great-circle between the airports, not driving distance. - [How Delta upgrades clear](https://2lnr.com/about/dl/upgrades.md) - [How to read award availability by date](https://2lnr.com/guides/award-availability.md) ## Never miss BOS to DEN upgrade or award space See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)