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O'Hare Intl

$118+ Cheap flights from Luis Munoz Marin Intl (SJU) to O'Hare Intl (ORD)

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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl are usually found in February or August, booked 67 days in advance, depart on a Friday or Thursday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to O'Hare Intl (ORD). 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 September 11, 2025.

Round-trip from

$181
(Cheapflightsfares)

One-way from

$118
(Booking.com)

Popular in

June

Cheapest in

February

Average price

$289

Good round-trip deal

$336 or less

Good one-way deal

$169 or less
From San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl
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One-way flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl
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Highest demand for flights based on searches. 11% potential increase in price ($41 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl.
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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl.
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Find flight deals from Luis Munoz Marin Intl to O'Hare Intl

Cheapest flights from Luis Munoz Marin Intl to O'Hare Intl
Explore the most affordable flight options available from Luis Munoz Marin Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/113:19 pmSJU - ORD
1 stop7h 14mSpirit Airlines
Sat 10/183:00 pmORD - SJU
Nonstop4h 40mSpirit Airlines
Deal found 9/11$181
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:44 amSJU - ORD
1 stop10h 28mSpirit Airlines
Sat 10/46:30 amORD - SJU
1 stop6h 41mSpirit Airlines
Deal found 9/11$186
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:40 pmSJU - ORD
Nonstop5h 16mSpirit Airlines
Fri 10/312:55 pmORD - SJU
Nonstop4h 39mSpirit Airlines
Deal found 9/11$187
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:40 pmSJU - ORD
Nonstop5h 16mSpirit Airlines
Wed 10/86:00 amORD - SJU
1 stop7h 12mSpirit Airlines
Deal found 9/11$189
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:19 pmSJU - ORD
1 stop7h 39mSpirit Airlines
Fri 10/312:55 pmORD - SJU
Nonstop4h 39mSpirit Airlines
Deal found 9/11$192
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/277:43 pmSJU - ORD
Nonstop5h 14mSpirit Airlines
Sat 11/12:03 pmORD - SJU
Nonstop4h 39mSpirit Airlines
Deal found 9/10$196
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/13:19 pmSJU - ORD
1 stop7h 39mSpirit Airlines
Sat 10/46:30 amORD - SJU
1 stop6h 41mSpirit Airlines
Deal found 9/10$198
This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/73:19 pmSJU - ORD
1 stop7h 14mSpirit Airlines
Fri 10/109:06 pmORD - SJU
Nonstop4h 45mSpirit Airlines
Deal found 9/11$200
This Spirit deal was found by Cheapflights users on 9/9. 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 Spirit is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/83:19 pmSJU - ORD
1 stop7h 14mSpirit Airlines
Wed 11/196:55 amORD - SJU
Nonstop4h 38mSpirit Airlines
Deal found 9/9$203
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:44 amSJU - ORD
1 stop10h 28mSpirit Airlines
Fri 10/312:55 pmORD - SJU
Nonstop4h 39mSpirit Airlines
Deal found 9/11$204
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/243:19 pmSJU - ORD
1 stop7h 14mSpirit Airlines
Mon 10/279:06 pmORD - SJU
Nonstop4h 45mSpirit Airlines
Deal found 9/10$208

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl to O'Hare Intl 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 September 11, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 11/13

6:10 am-9:50 pm

2 stops17h 40m

Chicago O'Hare Intl

Mon 11/17

1:45 pm-12:35 am

2 stops8h 50m

$315

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 11/13

6:10 am-9:50 pm

2 stops17h 40m

Chicago O'Hare Intl

Sun 11/16

1:45 pm-1:25 am

2 stops9h 40m

$385

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Fri 10/31

3:52 pm-8:20 pm

Nonstop5h 28m

Chicago O'Hare Intl

Sun 11/2

2:20 pm-9:00 pm

Nonstop4h 40m

$396

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Wed 10/1

1:05 am-7:38 am

1 stop7h 33m

Chicago O'Hare Intl

Mon 10/6

8:52 am-2:44 pm

Nonstop4h 52m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 12/4

2:05 am-10:44 am

1 stop10h 39m

Chicago O'Hare Intl

Mon 12/8

2:20 pm-9:00 pm

Nonstop4h 40m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Tue 10/28

1:05 am-9:48 am

1 stop9h 43m

Chicago O'Hare Intl

Mon 11/3

8:55 am-3:40 pm

Nonstop4h 45m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Tue 12/2

2:05 am-8:47 am

1 stop8h 42m

Chicago O'Hare Intl

Wed 12/10

2:20 pm-9:00 pm

Nonstop4h 40m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Wed 12/3

2:05 am-9:48 am

1 stop9h 43m

Chicago O'Hare Intl

Sun 12/7

2:20 pm-9:00 pm

Nonstop4h 40m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Wed 10/1

1:30 pm-8:14 pm

1 stop7h 44m

Chicago O'Hare Intl

Sun 10/5

8:52 am-2:44 pm

Nonstop4h 52m

$401

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Wed 10/1

1:05 am-10:38 am

1 stop10h 33m

Chicago O'Hare Intl

Wed 10/15

8:52 am-2:44 pm

Nonstop4h 52m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 24 results
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The best insider tips for San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport trip
Airlines
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for comfort.


Spirit's Economy Plus Bundle includes both carry-on and check-in bags.

Read more about Spirit Airlinesby Daniel Scheffler
United Airlines

Basic Economy allows a personal item only, no carry-on bags without extra fees.


United First includes two free checked bags and priority perks on the ground.

Read more about United Airlinesby Harriet Baskas
Airports
SJU

Arrive two hours early for domestic flights at SJU due to unpredictable security wait times.

Read more about SJUby Brandon Schultz
ORD

Take the 'L' train from ORD to Chicago to avoid traffic delays and save time.

Read more about ORDby Ramsey Qubein
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
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 SJU

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

Best time to book a flight from Luis Munoz Marin Intl to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Luis Munoz Marin 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to O'Hare Intl. Price data was last updated on August 29, 2025.

The price you pay for your flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 67 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 SJU to ORD?

Find hourly flight availability from Luis Munoz Marin Intl to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in the evening. Doing so could potentially save you 47% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to O'Hare Intl. Price data was last updated on September 7, 2025.

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

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

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

  • How long is the flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

    For as low as $396, Southwest can have you in Chicago O'Hare Intl Airport from San Juan Luis Munoz Marin Intl Airport in 5h 28m. San Juan Luis Munoz Marin Intl Airport and Chicago O'Hare Intl Airport are separated by a distance of 2073 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport round-trip?

    Our cheapest airline available from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport is Spirit Airlines. Our recent data shows that you can find tickets from as low as $135 on this airline. Additional options worth looking into are Frontier and Delta, starting at $137 and $162 round-trip. Spirit Airlines is currently priced 58% below the average price you’ll pay for this route.

  • What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

    Before booking your flight to Chicago O'Hare Intl Airport from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (86%), United Airlines (86%), Air New Zealand( 86%).

  • What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

    Looking at all options, your cheapest flight can be booked for $106. While the most popular route (San Juan Luis Munoz Marin Intl - Chicago O'Hare Intl) can be booked for $177 on average, our data indicates $623 when flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport.

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

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

  • How can I find direct flights from Luis Munoz Marin Intl to O'Hare Intl?

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

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

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to O'Hare Intl 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 San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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 Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Skokie
Gurnee
Hoffman Estates
Des Plaines
Elgin
Arlington Heights
Beloit
Racine
Rockford
Orland Park
Oak Brook
Downers Grove
Naperville
Elk Grove Village
Evanston
Merrillville
Bridgeview
Warrenville

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Alternative routes for Luis Munoz Marin Intl to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Midway flights

Top 6 airlines flying from Luis Munoz Marin Intl to O'Hare Intl

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl to O'Hare Intl. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$135Average$278FlexibilityNo cancel feeOn-time65%
FrontierCheapest$137Average$258FlexibilityNo cancel feeOn-time62%
DeltaCheapest$162Average$335FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$238Average$478FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$460FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$333Average$482FlexibilityNo cancel feeOn-time71%

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