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Dallas/Fort Worth

$59+ Cheap flights from Ontario (ONT) to Dallas/Fort Worth (DFW)

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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DFW
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Find cheap flights from Ontario to Dallas/Fort Worth with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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3. Compare prices and book

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Cheapflights Tip: The best prices from Ontario to Dallas/Fort Worth are usually found in April or March, booked 86 days in advance, depart on a Thursday or Saturday and return on a Thursday

Cheap flight deals from Ontario to Dallas/Fort Worth

Cheapest flights from Ontario to Dallas/Fort Worth
Explore the most affordable flight options available from Ontario to Dallas/Fort Worth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Frontier deal was found by Cheapflights users on 12/11. 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.
Thu 12/259:48 amONT - DFW
Nonstop2h 59mFrontier
Thu 1/112:05 pmDFW - ONT
1 stop7h 17mFrontier
Deal found 12/11$155
This CheapOair deal was found by Cheapflights users on 12/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/176:15 amONT - DFW
1 stop12h 53mFrontier
Fri 2/610:54 pmDFW - ONT
1 stop16h 40mFrontier
Deal found 12/9$156
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/246:45 amONT - DFW
1 stop24h 59mFrontier
Mon 1/510:37 pmDFW - ONT
1 stop18h 32mFrontier
Deal found 12/10$163
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - DFW
1 stop24h 59mFrontier
Wed 12/3110:47 pmDFW - ONT
1 stop24h 30mFrontier
Deal found 12/10$165
This CheapOair deal was found by Cheapflights users on 12/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/205:16 pmONT - DFW
1 stop10h 27mFrontier
Mon 1/1212:17 pmDFW - ONT
Nonstop3h 22mFrontier
Deal found 12/9$166
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:17 pmONT - DFW
1 stop9h 26mFrontier
Thu 1/17:29 amDFW - ONT
Nonstop3h 24mFrontier
Deal found 12/10$167
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:17 pmONT - DFW
1 stop17h 07mFrontier
Sun 1/410:47 pmDFW - ONT
1 stop24h 30mFrontier
Deal found 12/10$174
This CheapOair deal was found by Cheapflights users on 12/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:45 amONT - DFW
1 stop24h 59mFrontier
Thu 1/17:29 amDFW - ONT
Nonstop3h 24mFrontier
Deal found 12/10$177
This Booking.com deal was found by Cheapflights users on 12/11. 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.
Thu 12/254:16 pmONT - DFW
Nonstop3h 01mFrontier
Wed 12/3110:47 pmDFW - ONT
1 stop24h 30mFrontier
Deal found 12/11$179
This Frontier deal was found by Cheapflights users on 12/9. 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.
Thu 12/254:16 pmONT - DFW
Nonstop3h 01mFrontier
Mon 1/55:44 pmDFW - ONT
1 stop5h 33mFrontier
Deal found 12/9$181
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/166:15 amONT - DFW
1 stop12h 53mFrontier
Mon 1/55:44 pmDFW - ONT
1 stop5h 33mFrontier
Deal found 12/10$182

Find flight deals from Ontario to Dallas/Fort Worth

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Dallas/Fort Worth (DFW). 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 December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$138
(Kiwi.com)

One-way from

$59
(Trip.com)

Popular in

November

Cheapest in

April

Average price

$264

Good round-trip deal

$258 or less

Good one-way deal

$178 or less
Provider with most accurate pricing for Ontario-Dallas/Fort Worth flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Dallas/Fort Worth flights.
Search Deals
From Ontario to Dallas/Fort Worth
Search Deals
One-way flight from Ontario to Dallas/Fort Worth
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ontario to Dallas/Fort Worth.
Search Deals
Price to beat on a one-way flight from Ontario to Dallas/Fort Worth.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Dallas/Fort Worth 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 December 12, 2025.
Use the filters below to find and compare flights from Ontario to Dallas/Fort Worth Airport that are best for you.

Fly from

Ontario

Fly to

Dallas/Fort Worth

Route

Depart

Return

Price

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 1/6

4:04 pm-3:11 pm

1 stop21h 07m

Dallas/Fort Worth

Fri 1/30

10:55 am-12:20 am

1 stop15h 25m

$146

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 1/29

2:06 pm-7:11 pm

Nonstop3h 05m

Dallas/Fort Worth

Sun 2/1

2:59 pm-4:26 pm

Nonstop3h 27m

$157

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Fri 2/27

9:43 pm-5:47 am

1 stop6h 04m

Dallas/Fort Worth

Sun 3/1

1:00 pm-2:29 pm

Nonstop3h 29m

$174

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 1/6

4:04 pm-5:13 pm

1 stop23h 09m

Dallas/Fort Worth

Thu 1/8

2:42 pm-7:22 pm

1 stop6h 40m

$174

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sun 1/11

7:19 pm-12:53 pm

2 stops15h 34m

Dallas/Fort Worth

Tue 1/13

10:31 pm-5:54 pm

1 stop21h 23m

$180

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sat 1/24

7:30 am-9:16 pm

2 stops11h 46m

Dallas/Fort Worth

Sat 1/31

12:30 pm-10:51 pm

2 stops12h 21m

$227

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Tue 2/10

11:53 am-11:58 pm

1 stop10h 05m

Dallas/Fort Worth

Wed 2/18

5:39 pm-11:52 pm

1 stop8h 13m

$248

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 1/8

6:00 am-1:41 pm

1 stop5h 41m

Dallas/Fort Worth

Mon 1/12

6:45 am-4:12 pm

2 stops11h 27m

$274

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Thu 1/22

10:30 pm-10:46 am

1 stop10h 16m

Dallas/Fort Worth

Mon 1/26

2:41 pm-10:51 pm

2 stops10h 10m

$274

OntarioDallas

ONT - DFW

ONTDFW

Ontario

Sat 2/7

7:16 am-12:15 pm

Nonstop2h 59m

$91

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Dallas/Fort Worth

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 Ontario to Dallas/Fort Worth in December.
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
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 Ontario-Dallas/Fort Worth Airport flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Ontario-Dallas/Fort Worth Airport flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Ontario-Dallas/Fort Worth Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Dallas/Fort Worth Airport 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 Ontario-Dallas/Fort Worth Airport 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 Ontario to Dallas/Fort Worth

Have a flexible travel schedule? Discover the best time to fly to Dallas/Fort Worth from Ontario 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 Ontario to Dallas/Fort Worth Airport

How far ahead should I book a flight from Ontario to Dallas/Fort Worth Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Dallas/Fort Worth. Price data was last updated on December 5, 2025.

To ensure you get the cheapest price possible for a flight from Ontario to Dallas/Fort Worth Airport, you should look to book at least 86 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Ontario to Dallas/Fort Worth Airport?

Currently, January is the cheapest month in which you can book a flight from Ontario to Dallas/Fort Worth Airport (average of $66). Flying from Ontario to Dallas/Fort Worth Airport in July is currently the most expensive (average of $109). 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 ONT to DFW?

Find hourly flight availability from Ontario to Dallas/Fort Worth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Dallas/Fort Worth Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 43% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Ontario to Dallas/Fort Worth Airport?

Use this chart to determine the cheapest time to fly round-trip from Ontario to Dallas/Fort Worth. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Ontario to Dallas/Fort Worth Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Ontario to Dallas/Fort Worth Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Dallas/Fort Worth Airport trip
Airports
ONT

ONT offers a smooth security process with checkpoints in both terminals, often quicker than larger airports like LAX.

Read more about ONTBy Bill Fink
DFW

Upon arrival at DFW, use the DART Orange Line for convenient access to downtown Dallas from Terminal A.

Read more about DFWBy Chris Dong
Our travel experts
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more
Chris Dong

Chris Dong

Expert on DFW

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more

Reviews of airlines servicing Dallas/Fort Worth

Get insights into the airlines that provide service to Dallas/Fort Worth. 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 Dallas/Fort Worth. Reviews last updated December 12, 2025.
Read through reviews of airlines operating flights from Ontario to Dallas/Fort Worth Airport, such as Alaska Airlines, Southwest, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Alaska Airlines
8.0
Very good
11,432 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Southwest
7.9
Good
4,253 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
American Airlines
7.2
Good
11,050 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Spirit Airlines
6.3
Okay
8,180 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.
Frontier
5.8
Fair
3,084 reviews
Alaska Airlines
8.0
Very good
11,432 reviews

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Art,Dec 2025

SAN - OGG

It was a five hour flight and my seat did not recline. I have had three back surgeries and I’m solid bone for my L3 vertebrae all the way to my tailbone. My body has never hurt so much. There was no TV on this flight and only a small can of soda was free.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Dallas/Fort Worth. 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 from for flights from Ontario to Dallas/Fort Worth?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Dallas/Fort Worth. 6 airlines have flights from Ontario to Dallas/Fort Worth on a regular basis. Booking flights from Ontario to Dallas/Fort Worth should not be difficult; the airport handles an average of 14 outbound flights to Dallas/Fort Worth per day.

  • How long is the flight from Ontario to Dallas/Fort Worth Airport?

    Frontier can get you from Ontario to Dallas/Fort Worth Airport in just under 21h 07m. Your travel time can differ by up to . The distance from Ontario to Dallas/Fort Worth Airport is about 1185 mi.

  • What are the cheapest airlines flying from Ontario to Dallas/Fort Worth Airport round-trip?

    Our cheapest airline available from Ontario to Dallas/Fort Worth Airport is Spirit Airlines. Our recent data shows that you can find tickets from as low as $53 on this airline. Additional options worth looking into are Frontier and Delta, starting at $85 and $149 round-trip. You may be able to fly from Ontario to Dallas/Fort Worth Airport for 77% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Ontario to Dallas/Fort Worth Airport one-way?

    The cheapest airlines for a one-way flight from Ontario to Dallas/Fort Worth Airport are Frontier ($46), Southwest ($79), and American Airlines ($89).

  • What are the most reliable airlines from Ontario to Dallas/Fort Worth Airport?

    No one likes to see their flight delayed. When booking a flight from Ontario to Dallas/Fort Worth Airport consider choosing American Airlines (81%), British Airways (80%) or Iberia (79%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Ontario to Dallas/Fort Worth Airport?

    On average you can expect to pay $1,031 for a flight from Ontario to Dallas/Fort Worth Airport. The cheapest flight overall is $72 while the most popular route, (Ontario - Dallas/Fort Worth) is currently priced at $84.

  • Can I find deals for flights from Ontario to Dallas/Fort Worth that include hotel bookings?

    Yes. In addition to deals on Ontario to Dallas/Fort Worth flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Dallas/Fort Worth?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Dallas/Fort Worth.

  • Can I find deals for business class flights from Ontario to Dallas/Fort Worth?

    Yes. Cheapflights offers flight deals from Ontario to Dallas/Fort Worth 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 Ontario to Dallas/Fort Worth Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Dallas/Fort Worth Airport (average of $66). Flying from Ontario to Dallas/Fort Worth Airport in July is currently the most expensive (average of $109). 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 Dallas/Fort Worth Airport?

Book flights to Dallas/Fort Worth Airport if you plan to visit one of these locations
Fort Worth
Arlington
Rockwall
Allen
Garland
Frisco
Mansfield
Cedar Hill
Denton
Plano
Grapevine
McKinney
Durant
Richardson
Weatherford
Sherman
Burleson
Granbury
Cleburne
Sunnyvale

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Top 6 airlines flying from Ontario to Dallas/Fort Worth

Discover the top 6 airlines that operate flights from Ontario to Dallas/Fort Worth. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$78Average$175FlexibilityNo cancel feeOn-time65%
FrontierCheapest$88Average$187FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$437FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$161Average$306FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$185Average$330FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$225Average$267FlexibilityNo cancel feeOn-time75%

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