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$89+ Cheap flights from O'Hare Intl (ORD) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SEA
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Seattle/Tacoma Intl are usually found in September or February, booked 78 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated octubre 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$89
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$257

Good round-trip deal

$248 or less

Good one-way deal

$168 or less
Provider with most accurate pricing for Chicago O'Hare Intl-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Seattle/Tacoma Intl flights.
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From Chicago O'Hare Intl to Seattle/Tacoma Intl
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One-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 7% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl to Seattle/Tacoma Intl.
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Find flight deals from O'Hare Intl to Seattle

Cheapest flights from O'Hare Intl to Seattle
Explore the most affordable flight options available from O'Hare Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/139:22 pmORD - SEA
2 stops23h 10mMultiple Airlines
jue. 11/271:01 pmSEA - ORD
1 stop9h 09mMultiple Airlines
Deal found 10/29$173
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:00 amORD - SEA
2 stops14h 32mFrontier
lun. 11/172:22 pmSEA - ORD
1 stop27h 16mFrontier
Deal found 10/28$174
This WAYA deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/68:00 amORD - SEA
Nonstop4h 52mMultiple Airlines
dom. 12/1412:48 pmSEA - ORD
1 stop9h 24mMultiple Airlines
Deal found 10/29$175
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:05 pmORD - SEA
1 stop20h 02mFrontier
lun. 11/1711:43 amSEA - ORD
2 stops29h 55mFrontier
Deal found 10/28$176
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/127:45 pmORD - SEA
Nonstop4h 43mUnited Airlines
dom. 12/147:00 amSEA - ORD
Nonstop4h 09mUnited Airlines
Deal found 10/28$177
This Booking.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:05 pmORD - SEA
1 stop20h 02mFrontier
jue. 11/1312:58 pmSEA - ORD
1 stop9h 17mFrontier
Deal found 10/29$178
This Cheapflightsfares deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/105:51 pmORD - SEA
Nonstop4h 44mAlaska Airlines
mié. 12/1012:18 amSEA - ORD
Nonstop4h 03mAlaska Airlines
Deal found 10/29$180
This Frontier deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/57:00 amORD - SEA
1 stop6h 53mFrontier
lun. 12/83:40 pmSEA - ORD
1 stop6h 32mFrontier
Deal found 10/28$182
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/258:39 pmORD - SEA
1 stop18h 43mFrontier
jue. 11/271:01 pmSEA - ORD
1 stop9h 09mFrontier
Deal found 10/30$183
This Booking.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:05 pmORD - SEA
1 stop20h 02mFrontier
vie. 11/142:22 pmSEA - ORD
1 stop7h 53mFrontier
Deal found 10/28$184
This Cheapflightsfares deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/65:51 pmORD - SEA
Nonstop4h 44mAlaska Airlines
mié. 12/1012:18 amSEA - ORD
Nonstop4h 03mAlaska Airlines
Deal found 10/28$185

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Seattle that are best for you.

Fly from

O'Hare Intl

Fly to

Seattle

Route

Depart

Return

Price

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 1/7

2:20 pm-5:00 pm

Nonstop4h 40m

Seattle/Tacoma Intl

dom. 1/11

5:55 pm-11:53 pm

Nonstop3h 58m

$177

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mar. 1/6

8:50 am-11:32 am

Nonstop4h 42m

Seattle/Tacoma Intl

dom. 1/11

2:10 pm-8:17 pm

Nonstop4h 07m

$177

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 1/14

7:30 am-10:15 am

Nonstop4h 45m

Seattle/Tacoma Intl

mié. 1/21

7:10 am-1:22 pm

Nonstop4h 12m

$177

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

sáb. 2/14

9:00 am-11:49 am

Nonstop4h 49m

Seattle/Tacoma Intl

sáb. 2/28

7:00 am-1:06 pm

Nonstop4h 06m

$177

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

jue. 2/26

7:30 am-10:15 am

Nonstop4h 45m

Seattle/Tacoma Intl

dom. 3/8

7:20 am-1:25 pm

Nonstop4h 05m

$177

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 1/7

6:06 pm-9:00 pm

Nonstop4h 54m

Seattle/Tacoma Intl

dom. 1/11

9:45 pm-1:10 pm

1 stop13h 25m

$187

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

dom. 1/18

2:06 pm-6:46 pm

1 stop6h 40m

Seattle/Tacoma Intl

mar. 1/27

8:30 am-2:38 pm

Nonstop4h 08m

$187

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

lun. 1/5

8:00 am-10:47 am

Nonstop4h 47m

Seattle/Tacoma Intl

mar. 1/6

5:20 am-1:16 pm

1 stop5h 56m

$197

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mié. 12/17

7:50 am-10:41 am

Nonstop4h 51m

Seattle/Tacoma Intl

vie. 1/16

5:55 pm-11:53 pm

Nonstop3h 58m

$197

ChicagoSeattle

ORD - SEA

ORDSEA

Chicago O'Hare Intl

mar. 12/30

7:55 pm-10:47 pm

Nonstop4h 52m

Seattle/Tacoma Intl

vie. 1/9

12:35 pm-11:14 pm

1 stop8h 39m

$203

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 23 results
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Compare providers for flights from O'Hare Intl to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Seattle in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Seattle flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Chicago O'Hare Intl Airport-Seattle flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Seattle flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Seattle

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Seattle. Price data was last updated on October 24, 2025.

The price you pay for your flight from Chicago O'Hare Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 78 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Seattle?

Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $113). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of $177). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SEA?

Find hourly flight availability from O'Hare Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

One of the essential ways to save on airfare from Chicago O'Hare Intl Airport to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Seattle?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Seattle. Price data was last updated on October 26, 2025.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Seattle flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Chicago O'Hare Intl Airport to Seattle flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago O'Hare Intl Airport to Seattle trip
Airports
ORD

For a quick departure, use the "L" train to reach ORD, avoiding Chicago traffic delays common with taxis and rideshares.

Read more about ORDby Ramsey Qubein
SEA

Take the Link light rail from SEA to downtown Seattle for an affordable and convenient 40-minute journey.

Read more about SEAby Brandon Schultz
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated octubre 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and Hawaiian Airlines from Chicago O'Hare Intl Airport to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,217 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
7,998 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,797 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
11,035 reviews
Alaska Airlines
8.0
Very good
11,217 reviews

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Boarding

8.1

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Chicago O'Hare Intl?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Seattle from Chicago O'Hare Intl. Booking flights from Chicago O'Hare Intl to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 14 daily inbound flights from Chicago O'Hare Intl from 7 different airlines.

  • How long is the flight from Chicago O'Hare Intl Airport to Seattle?

    A quick flight from Chicago O'Hare Intl Airport to Seattle can take about 4h 40m. Delta provides one of the quickest options available for as low as $177. The distance between Chicago O'Hare Intl Airport and Seattle is about 1715 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Seattle round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Seattle is Hawaiian Airlines. Our recent data shows that you can find tickets from as low as $91 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $105 and $122 round-trip. Users have found that Hawaiian Airlines is 68% cheaper than the other options available to this destination.

  • What are the most reliable airlines from Chicago O'Hare Intl Airport to Seattle?

    Before booking your flight to Seattle from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: Air France (92%), Delta (87%), Korean Air( 81%).

  • What are the cheapest flights from Chicago O'Hare Intl Airport to Seattle?

    On average you can expect to pay $906 for a flight from Chicago O'Hare Intl Airport to Seattle. The cheapest flight overall is $103 while the most popular route, (Chicago O'Hare Intl - Seattle/Tacoma Intl) is currently priced at $154.

  • Can I find deals for flights from O'Hare Intl to Seattle that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Seattle.

  • Can I find deals for business class flights from O'Hare Intl to Seattle?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Seattle?

    Currently, September is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Seattle (average of $113). Flying from Chicago O'Hare Intl Airport to Seattle in December is currently the most expensive (average of $177). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
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Top 7 airlines flying from O'Hare Intl to Seattle

Discover the top 7 airlines that operate flights from O'Hare Intl to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$91Average$251FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$105Average$202FlexibilityNo cancel feeOn-time65%
DeltaCheapest$122Average$262FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$148Average$257FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$169Average$301FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$172Average$322FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$176Average$322FlexibilityNo cancel feeOn-time69%

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