---
title: "Seattle (SEA) to Chicago (ORD) flights: who flies it"
description: "Alaska Airlines, American Airlines and 2 more airlines fly nonstop from SEA to ORD, about 115 flights a week. Upgrade and award space by date on 2LNR, next 14 days free."
canonical: "https://2lnr.com/routes/sea-ord"
url: "https://2lnr.com/routes/sea-ord.md"
date_modified: "2026-10-18T05:10:47Z"
---

# Seattle to Chicago (SEA-ORD): nonstop upgrade & award space

United Airlines, Alaska Airlines, American Airlines, and Delta Air Lines fly nonstop between Seattle (SEA) and Chicago (ORD), roughly 115 times a week. The timetable below shows the nonstop scheduled at 3h 59m to 4h 31m for the 1,716 miles. 2LNR checks confirmed upgrade and award space on Alaska Airlines, American Airlines, and 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 23, 2026.

See SEA to ORD on the interactive map [Get started free](https://2lnr.com/login)

115

Flights a week, 4-week average

3h 59m to 4h 31m

Scheduled flight time

1,716 mi

Nonstop distance

Free

To get started

## Seattle to Chicago flight schedule

Scheduled nonstop departures for SEA to ORD starting October 23, 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 Seattle (SEA) to Chicago (ORD)

| Date | Flight | Airline | Departs SEA | Arrives ORD | Duration | Aircraft |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| Fri, Oct 23 | AA 1872 | American Airlines | 06:12 | 12:26 | 4h 14m | [Airbus A321](https://2lnr.com/seatmaps/aa/a321.md) |
| Fri, Oct 23 | UA 2618 | United Airlines | 07:00 | 13:15 | 4h 15m | [Airbus A321neo family](https://2lnr.com/seatmaps/ua/a321neo.md) |
| Fri, Oct 23 | DL 2055 | Delta Air Lines | 07:15 | 13:30 | 4h 15m | [Boeing 737-800](https://2lnr.com/seatmaps/dl/737-800.md) |
| Fri, Oct 23 | AS 265 | Alaska Airlines, Inc. | 08:32 | 14:53 | 4h 21m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md) |
| Fri, Oct 23 | AA 3234 | American Airlines | 10:31 | 16:55 | 4h 24m | [Boeing 737-800](https://2lnr.com/seatmaps/aa/737-800.md) |
| Fri, Oct 23 | AS 429 | Alaska Airlines, Inc. | 10:33 | 16:50 | 4h 17m | Boeing 737 MAX 9 |
| Fri, Oct 23 | DL 637 | Delta Air Lines | 10:39 | 16:53 | 4h 14m | [Airbus A220-300](https://2lnr.com/seatmaps/dl/a220-300.md) |
| Fri, Oct 23 | UA 2835 | United Airlines | 10:42 | 17:00 | 4h 18m | [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.md) |
| Fri, Oct 23 | AS 579 | Alaska Airlines, Inc. | 11:56 | 18:20 | 4h 24m | [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) |
| Fri, Oct 23 | UA 2369 | United Airlines | 13:56 | 20:17 | 4h 21m | [Boeing 737 MAX 9](https://2lnr.com/seatmaps/ua/737-max-9.md) |
| Fri, Oct 23 | AA 2966 | American Airlines | 14:12 | 20:43 | 4h 31m | Airbus A321 |
| Fri, Oct 23 | AA 1476 | American Airlines | 15:14 | 21:29 | 4h 15m | Airbus A321 |
| Fri, Oct 23 | UA 1265 | United Airlines | 17:07 | 23:10 | 4h 3m | [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md) |
| Fri, Oct 23 | DL 2108 | Delta Air Lines | 17:30 | 23:34 | 4h 4m | Airbus A220-300 |
| Fri, Oct 23 | AA 2672 | American Airlines | 17:39 | 23:45 | 4h 6m | Airbus A321 |
| Fri, Oct 23 | AS 538 | Alaska Airlines, Inc. | 17:49 | 23:59 | 4h 10m | Boeing 737 MAX 9 |
| Fri, Oct 23 | UA 747 | United Airlines | 23:13 | 05:19 | 4h 6m | Boeing 737 MAX 8 |
| Fri, Oct 23 | AS 285 | Alaska Airlines, Inc. | 23:41 | 05:40 | 3h 59m | Boeing 737-900 |
| Fri, Oct 23 | AA 2379 | American Airlines | 23:59 | 06:05 | 4h 6m | Airbus A321 |
| Sat, Oct 24 | AA 1872 | American Airlines | 06:12 | 12:26 | 4h 14m | Airbus A321 |
| Sat, Oct 24 | UA 2618 | United Airlines | 07:00 | 13:15 | 4h 15m | Airbus A321neo family |
| Sat, Oct 24 | DL 2055 | Delta Air Lines | 07:45 | 14:00 | 4h 15m | Boeing 737-800 |
| Sat, Oct 24 | AS 265 | Alaska Airlines, Inc. | 08:32 | 14:53 | 4h 21m | Boeing 737 MAX 9 |
| Sat, Oct 24 | DL 637 | Delta Air Lines | 10:39 | 16:53 | 4h 14m | Airbus A220-300 |
| Sat, Oct 24 | UA 2835 | United Airlines | 10:42 | 17:00 | 4h 18m | [Boeing 737-900](https://2lnr.com/seatmaps/ua/737-900.md) |
| Sat, Oct 24 | AA 3234 | American Airlines | 11:17 | 17:29 | 4h 12m | Airbus A321 |
| Sat, Oct 24 | AS 579 | Alaska Airlines, Inc. | 11:56 | 18:20 | 4h 24m | Boeing 737-900 |
| Sat, Oct 24 | UA 2369 | United Airlines | 13:56 | 20:17 | 4h 21m | Boeing 737 MAX 9 |
| Sat, Oct 24 | AA 2966 | American Airlines | 14:12 | 20:43 | 4h 31m | Airbus A321 |
| Sat, Oct 24 | AA 1476 | American Airlines | 15:14 | 21:29 | 4h 15m | Airbus A321 |
| Sat, Oct 24 | UA 1265 | United Airlines | 17:07 | 23:10 | 4h 3m | Boeing 737-800 |
| Sat, Oct 24 | AA 2672 | American Airlines | 17:39 | 23:45 | 4h 6m | Airbus A321 |
| Sat, Oct 24 | DL 2108 | Delta Air Lines | 17:50 | 23:54 | 4h 4m | Airbus A220-300 |
| Sat, Oct 24 | UA 1547 | United Airlines | 23:13 | 05:19 | 4h 6m | Boeing 737-800 |
| Sat, Oct 24 | AS 285 | Alaska Airlines, Inc. | 23:41 | 05:40 | 3h 59m | Boeing 737-900 |
| Sat, Oct 24 | AA 2379 | American Airlines | 23:59 | 06:05 | 4h 6m | Airbus A321 |
| Sun, Oct 25 | AA 1872 | American Airlines | 06:12 | 12:26 | 4h 14m | Airbus A321 |
| Sun, Oct 25 | UA 2618 | United Airlines | 07:00 | 13:15 | 4h 15m | Airbus A321neo family |
| Sun, Oct 25 | DL 2055 | Delta Air Lines | 07:15 | 13:30 | 4h 15m | Boeing 737-800 |
| Sun, Oct 25 | AS 265 | Alaska Airlines, Inc. | 08:32 | 14:53 | 4h 21m | Boeing 737-900 |

Showing the first 40 of 122 scheduled SEA to ORD departures across 7 days with service, starting October 23, 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 SEA to ORD date on the interactive map

## Aircraft on the Seattle to Chicago nonstop

In the schedule table on this page, American Airlines flies the [Airbus A321](https://2lnr.com/seatmaps/aa/a321.md) and the [Boeing 737-800](https://2lnr.com/seatmaps/aa/737-800.md). United Airlines flies the [Airbus A321neo family](https://2lnr.com/seatmaps/ua/a321neo.md), the [Boeing 737-800](https://2lnr.com/seatmaps/ua/737-800.md), the [Boeing 737 MAX 8](https://2lnr.com/seatmaps/ua/737-max-8.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). Alaska Airlines flies the [Boeing 737-900](https://2lnr.com/seatmaps/as/737-900.md) and the [Boeing 737 MAX 9](https://2lnr.com/seatmaps/as/737-max-9.md). Delta Air Lines flies the [Airbus A220-300](https://2lnr.com/seatmaps/dl/a220-300.md). The Aircraft column has the rest. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

## Confirmed upgrade & award space on SEA to ORD departures

2LNR tracks confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines, segment by segment and date by date. Open the calendar for Seattle to Chicago 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 Seattle to Chicago departures from October 19 to November 1. Alaska Airlines had space open on 9 of 14 dates checked, American Airlines on 11 of 14 and Delta Air Lines on 14 of 14.

### See real availability

Confirmed upgrade or award seats by date on the SEA to ORD 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 SEA to ORD on the interactive route map, with schedules, connections, and route statistics.

## Airlines flying Seattle to Chicago nonstop

Carriers operating SEA to ORD 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)
- [Alaska Airlines (AS) route map](https://2lnr.com/routes/airlines/as.md)\
  [The aircraft AS flies](https://2lnr.com/seatmaps/as.md)
- [American Airlines (AA) route map](https://2lnr.com/routes/airlines/aa.md)\
  [The aircraft AA flies](https://2lnr.com/seatmaps/aa.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 SEA to ORD on the interactive map →

## Frequently asked questions about SEA to ORD

**How long is the flight from Seattle (SEA) to Chicago (ORD)?**

Scheduled flight times from Seattle (SEA) to Chicago (ORD) run from 3h 59m to 4h 31m across the departures in the schedule table on this page. The nonstop covers about 1,716 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.

**Which airlines fly nonstop from SEA to ORD?**

United Airlines, Alaska Airlines, American Airlines, and Delta Air Lines fly SEA to ORD nonstop. 2LNR tracks confirmed upgrade and award space on Alaska Airlines, American Airlines, and Delta Air Lines.

**How many flights a week are there from SEA to ORD?**

About 115 nonstop flights a week run between Seattle (SEA) and Chicago (ORD) in the current schedule, operated by United Airlines, Alaska Airlines, American Airlines, 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 SEA to ORD depart?**

Scheduled SEA to ORD nonstops in the next 7 days with service leave between 06:12 and 23:59, local time at Seattle. The schedule table on this page lists every departure by date, with its arrival time and aircraft.

**Which flights operate SEA to ORD nonstop?**

The schedule table on this page lists 20 flight numbers for SEA to ORD nonstops, including AA 1872 and AA 3234 on American Airlines; UA 2618 and UA 2835 on United Airlines; AS 265 and AS 579 on Alaska Airlines; and DL 637 and DL 2055 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 SEA to ORD?**

Open the SEA to ORD route on the interactive map or the matrix to see confirmed upgrade and award space by date on Alaska Airlines, American Airlines, and 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 [ORD to SEA upgrade and award space](https://2lnr.com/routes/ord-sea.md).

Award seats rather than schedules? See [Alaska Airlines award availability](https://2lnr.com/awards/as.md) or [American Airlines award availability](https://2lnr.com/awards/aa.md).

Looking beyond this route? See [every route from Seattle (SEA)](https://2lnr.com/routes/sea.md), or [every route from Chicago (ORD)](https://2lnr.com/routes/ord.md).

Nonstops to Chicago (ORD) from other airports within 150 miles of Seattle (SEA):

- [Vancouver (YVR) to Chicago (ORD)](https://2lnr.com/routes/yvr-ord.md), 127 miles from SEA
- [Portland (PDX) to Chicago (ORD)](https://2lnr.com/routes/pdx-ord.md), 129 miles from SEA

Nonstops from Seattle (SEA) to other airports within 150 miles of Chicago (ORD):

- [Seattle (SEA) to Milwaukee (MKE)](https://2lnr.com/routes/sea-mke.md), 67 miles from ORD

Distances are great-circle between the airports, not driving distance.

- [How Alaska upgrades clear](https://2lnr.com/about/as/upgrades.md)
- [How to read award availability by date](https://2lnr.com/guides/award-availability.md)

## Never miss SEA to ORD 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)