HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
St. Louis

$71+ Cheap flights from Houston to St. Louis (STL)

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — STL
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston to St. Louis 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

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Houston to Lambert-St Louis are usually found in April or August, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Houston to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) to St. Louis (STL). 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 August 18, 2025.

Round-trip from

$144
(Priceline)

One-way from

$71
(Kiwi.com)

Popular in

January

Cheapest in

April

Average price

$293
From Houston to Lambert-St Louis
Search Deals
One-way flight from Houston to Lambert-St Louis
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Houston to St. Louis

Cheapest flights from Houston to St. Louis
Explore the most affordable flight options available from Houston to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 18, 2025.

This Priceline deal was found by Cheapflights users on 8/18. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:05 amIAH - STL
1 stop8h 59mFrontier
Sun 9/74:00 pmSTL - IAH
1 stop5h 52mFrontier
Deal found 8/18$144
This Frontier deal was found by Cheapflights users on 8/17. 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.
Fri 9/59:08 pmIAH - STL
1 stop11h 58mFrontier
Sun 9/74:00 pmSTL - IAH
1 stop5h 52mFrontier
Deal found 8/17$153
This Priceline deal was found by Cheapflights users on 8/15. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/237:10 amIAH - STL
1 stop6h 23mFrontier
Mon 8/252:01 pmSTL - IAH
1 stop8h 25mFrontier
Deal found 8/15$158
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:05 amIAH - STL
1 stop8h 59mFrontier
Tue 9/307:55 pmSTL - IAH
1 stop25h 19mFrontier
Deal found 8/17$160
This Expedia deal was found by Cheapflights users on 8/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:05 amIAH - STL
1 stop8h 59mFrontier
Sun 9/284:00 pmSTL - IAH
1 stop5h 52mFrontier
Deal found 8/17$163
This FlightHub deal was found by Cheapflights users on 8/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:05 amIAH - STL
1 stop6h 51mFrontier
Sun 10/51:57 pmSTL - IAH
1 stop25h 07mFrontier
Deal found 8/15$167
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:08 pmIAH - STL
1 stop11h 58mFrontier
Fri 9/267:55 pmSTL - IAH
1 stop15h 14mFrontier
Deal found 8/17$171
This Frontier deal was found by Cheapflights users on 8/17. 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.
Sun 8/246:00 amIAH - STL
1 stop27h 11mFrontier
Mon 8/252:01 pmSTL - IAH
1 stop8h 25mFrontier
Deal found 8/17$183
This Frontier deal was found by Cheapflights users on 8/18. 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.
Sat 11/88:47 pmIAH - STL
1 stop12h 20mFrontier
Sun 11/97:02 pmSTL - IAH
2 stops15h 35mFrontier
Deal found 8/18$186
This Frontier deal was found by Cheapflights users on 8/16. 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.
Fri 9/199:08 pmIAH - STL
1 stop11h 58mFrontier
Sun 9/214:00 pmSTL - IAH
2 stops17h 54mFrontier
Deal found 8/16$188
This Frontier deal was found by Cheapflights users on 8/17. 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.
Fri 9/269:08 pmIAH - STL
1 stop11h 58mFrontier
Sun 9/284:00 pmSTL - IAH
2 stops17h 54mFrontier
Deal found 8/17$189
This FlightHub deal was found by Cheapflights users on 8/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:00 amIAH - STL
1 stop27h 07mMultiple Airlines
Sun 10/1910:57 amSTL - IAH
1 stop21h 58mMultiple Airlines
Deal found 8/18$190

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston to St. Louis 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 August 18, 2025.
Use the filters below to find and compare flights from Houston to St. Louis that are best for you.

Fly from

Houston

Fly to

St. Louis

Route

Depart

Return

Price

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Thu 9/25

6:05 am-3:04 pm

1 stop8h 59m

Lambert-St Louis

Sun 9/28

4:00 pm-9:52 pm

1 stop5h 52m

$144

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Sun 9/21

6:05 am-3:04 pm

1 stop8h 59m

Lambert-St Louis

Mon 9/22

4:00 pm-9:53 pm

1 stop5h 53m

$144

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Thu 9/4

6:05 am-3:04 pm

1 stop8h 59m

Lambert-St Louis

Sun 9/7

4:00 pm-9:52 pm

1 stop5h 52m

$144

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Thu 9/18

6:05 am-3:04 pm

1 stop8h 59m

Lambert-St Louis

Mon 9/22

4:00 pm-9:53 pm

1 stop5h 53m

$144

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Fri 9/26

9:08 pm-9:06 am

1 stop11h 58m

Lambert-St Louis

Sun 9/28

4:00 pm-9:52 pm

1 stop5h 52m

$153

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Fri 9/12

9:08 pm-9:06 am

1 stop11h 58m

Lambert-St Louis

Mon 9/15

4:00 pm-9:53 pm

1 stop5h 53m

$153

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Sat 11/8

8:47 pm-9:07 am

1 stop12h 20m

Lambert-St Louis

Sun 11/9

11:17 am-5:01 pm

1 stop5h 44m

$153

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Sat 9/27

9:08 pm-9:06 am

1 stop11h 58m

Lambert-St Louis

Sun 9/28

4:00 pm-9:52 pm

1 stop5h 52m

$153

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Fri 9/5

9:08 pm-9:06 am

1 stop11h 58m

Lambert-St Louis

Mon 9/8

4:00 pm-9:53 pm

1 stop5h 53m

$153

HoustonSt. Louis

IAH - STL

IAHSTL

Houston George Bush Intcntl

Fri 9/5

9:08 pm-9:06 am

1 stop11h 58m

Lambert-St Louis

Sun 9/7

4:00 pm-9:52 pm

1 stop5h 52m

$153

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 33 results
1
2
3
4

The best insider tips for Houston to St. Louis 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 Houston to St. Louis trip
Airlines
Southwest

Southwest offers two free checked bags, including oversized items like skis.


Enjoy free in-flight messaging and entertainment streamed to your device.

Read more about Southwestby Marisa Garcia
United Airlines

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


Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas
Airports
IAH

Check security wait times on IAH's website to ensure a smooth departure experience.

Read more about IAHby Evie Carrick
HOU

HOU's single terminal makes it easy to navigate, with short security lines outside peak holiday periods.

Read more about HOUby Scott Laird
STL

Use MetroLink for a convenient and economical ride from STL to downtown St. Louis.

Read more about STLby Taryn White
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

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
Evie Carrick

Evie Carrick

Expert on IAH

Evie Carrick

Evie Carrick

Evie Carrick is a writer and editor who has lived in five countries and traveled to over 50, with extensive experience flying around the world. She was born in Colorado, but has spent time flying to both coasts to visit family. She writes regularly for Travel + Leisure, BuzzFeed, and SKI and recently published seven travel journals with Simon & Schuster.

Read more
Taryn White

Taryn White

Expert on STL

Taryn White

Taryn White

Taryn White is a freelance travel writer, digital creator, and travel advisor who has visited nearly 100 countries and all 50 states. She’s familiar with many airports and enjoys beach hopping, boutique hotels, spa experiences, and exploring local culture. Her work has appeared in Travel + Leisure, Condé Nast Traveler, National Geographic, Smithsonian Magazine, AFAR, and more.

Read more
Scott Laird

Scott Laird

Expert on HOU

Scott Laird

Scott Laird

Originally from Anchorage, Alaska, Scott is a frequent contributor to Fodor’s Travel Guide, Conde Nast Traveler, TravelAge West, and TravelPulse. He holds a Bachelor of Science in Organizational Management from Alaska Pacific University and a Master of Science in Airline Management from Embry-Riddle Aeronautical University, and has worked in the airline and hotel industries and as a travel consultant.

Read more

Best time to book a flight from Houston to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Houston 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 Houston to St. Louis

How far ahead should I book a flight from Houston to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Houston to St. Louis. Price data was last updated on August 8, 2025.

Booking 86 days in advance of your planned departure date is, on average, the best time to get cheap flights from Houston to St. Louis. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Houston to St. Louis?

Currently, August is the cheapest month in which you can book a flight from Houston to St. Louis (average of $311). Flying from Houston to St. Louis in March is currently the most expensive (average of $356). 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 HOU to STL?

Find hourly flight availability from Houston to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 18, 2025.

One of the essential ways to save on airfare from Houston to St. Louis is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight at noon could potentially save you up to 11% on airfare.

What is the cheapest day to fly from Houston to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Houston to St. Louis. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Houston to St. Louis flight should consider departing on Tuesday afternoons 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.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. 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 St. Louis. Reviews last updated August 18, 2025.
Peruse reviews from past customers who have flown with Southwest, United Airlines, and American Airlines from Houston to St. Louis 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
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,925 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
5.8
Fair
3,212 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Houston to St. Louis Travel Guide

St. Louis Lambert International Airport is located 14 miles from the downtown district in St. Louis. You’ll sometimes see it listed as Lambert Field. This airport is the busiest and the biggest one in the state of Missouri. There is a second airport in the city or located close to the city but the majority of flights arrive at Lambert. There is a connected railway though if it’s needed for a traveler to make it to the other airport.

Related info for your journey

Find useful and relevant information for your journey from Houston to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports serve Houston to St. Louis flights?

    You can fly from either of Houston’s major airports to St. Louis. The majority of the flights on this route have one stop in between. There are more flights going from George Bush Intercontinental Airport to Lambert-St. Louis International Airport than from William P. Hobby Airport in Houston.

  • Which airlines fly directly from Houston to St. Louis?

    There are not a lot of direct flights between these two cities but there are a few. They are operated by United. The flight is 2h 5m to 2h 12m, depending on the time of day you go. For more choices of departure times, you can look for a stopover flight.

  • What are the stopover options between Houston to St. Louis?

    American Airlines has a stop in Dallas for this route. Most of these are an hour or less. Delta stops in Atlanta and sometimes in Detroit. There are also a couple of options that stop in Minneapolis. United offers flights that land in Chicago at O’Hare before moving on to St. Louis. Most of the flights are around five hours or so. The longest ones are about eight hours.

  • Do I need a passport or visa to fly from Houston to St. Louis?

    You will not need your passport or a visa for this flight. The connections are all within the United States so the flights are purely domestic. There is only a requirement that you bring a valid form of identification to the airport so you are allowed to board the plane.

  • What airport do you fly into for flights to St. Louis from Houston?

    For a flight from Houston to St. Louis, you will be flying into Lambert-St Louis. Lambert-St Louis (STL) is just 12.7 mi from the center of the city. Lambert-St Louis is the only St. Louis airport and it handles 4 inbound flights from Houston per day. 4 airlines have flights to Lambert-St Louis from Houston on a regular basis.

  • How long is the flight from Houston to St. Louis?

    Departing from Houston to St. Louis will take you 1h 55m. The distance between Houston and St. Louis is about 688 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Houston to St. Louis round-trip?

    Flying on Frontier is currently your cheapest option to St. Louis, with prices starting at $106. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $180 and $204, respectively. Frontier is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest flights from Houston to St. Louis?

    The cheapest flight price from Houston to St. Louis is $89. On average you can expect to pay $233. The most popular route, (Houston Hobby - Lambert-St Louis), can usually be booked for $176.

  • Can I find deals for flights from Houston to St. Louis that include hotel bookings?

    Yes. In addition to deals on Houston to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Houston to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Houston to St. Louis.

  • Can I find deals for business class flights from Houston to St. Louis?

    Yes. Cheapflights offers flight deals from Houston to St. Louis 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 Houston to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Houston to St. Louis (average of $311). Flying from Houston to St. Louis in March is currently the most expensive (average of $356). 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 St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
St. Peters
Glencoe
Alton
Chesterfield
Farmington
Festus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Houston to St. Louis

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to St. Louis flights
Hobby to St. Louis flights
Dallas/Fort Worth to Kansas City flights
Austin to Kansas City flights
George Bush Intcntl to St. Louis flights
Hobby to Kansas City flights
George Bush Intcntl to Kansas City flights
Austin to St. Louis flights
San Antonio to St. Louis flights
Hobby to Springfield flights
Love Field to St. Louis flights
George Bush Intcntl to Springfield flights
Dallas/Fort Worth to Springfield flights
Love Field to Kansas City flights
El Paso to St. Louis flights
McAllen to Kansas City flights
San Antonio to Kansas City flights
San Antonio to Springfield flights
Hobby to Columbia flights
Austin to Springfield flights
El Paso to Kansas City flights
George Bush Intcntl to Columbia flights
Dallas/Fort Worth to Columbia flights
Corpus Christi to St. Louis flights
Love Field to Springfield flights
Hobby to Joplin flights
Lubbock to Kansas City flights
Midland to Springfield flights
Killeen to St. Louis flights
Amarillo to Springfield flights
Austin to Columbia flights
Dallas/Fort Worth to Branson flights
Austin to Joplin flights
San Antonio to Joplin flights
El Paso to Springfield flights
Killeen to Springfield flights
Lubbock to Springfield flights
McAllen to Joplin flights
Beaumont to Kansas City flights
Beaumont to St. Louis flights
Dallas/Fort Worth to Joplin flights
Waco to St. Louis flights
El Paso to Branson flights
San Angelo to Kansas City flights
McAllen to Springfield flights
Lubbock to St. Louis flights
Laredo to Kansas City flights
Killeen to Joplin flights
Lubbock to Columbia flights
Killeen to Fort Leonard Wood flights

Top 4 airlines flying from Houston to St. Louis

Discover the top 4 airlines that operate flights from Houston to St. Louis. 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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$228FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$180Average$353FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$204Average$400FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$215Average$367FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.