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Washington, D.C.

$79+ Cheap flights from Luis Munoz Marin Intl (SJU) to Washington, D.C. (WAS)

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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — WAS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Washington, D.C. are usually found in May or February, booked 59 days in advance, depart on a Thursday or Wednesday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Washington, D.C. (WAS). 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 June 12, 2025.

Round-trip from

$160
(SmartFares)

One-way from

$79
(Frontier)

Popular in

October

Cheapest in

May

Average price

$319

Good round-trip deal

$181 or less

Good one-way deal

$112 or less
From San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS)
Search Deals
One-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 9% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS).
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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Washington, D.C. (WAS).
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Find flight deals from Luis Munoz Marin Intl to Washington, D.C.

Cheapest flights from Luis Munoz Marin Intl to Washington, D.C.
Explore the most affordable flight options available from Luis Munoz Marin Intl to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/12. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:21 amSJU - BWI
Nonstop3h 59mSpirit Airlines
Tue 7/156:48 amBWI - SJU
Nonstop3h 41mSpirit Airlines
Deal found 6/12$160
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Sun 9/219:07 amSJU - IAD
1 stop10h 14mFrontier
Thu 9/258:06 pmIAD - SJU
1 stop6h 28mFrontier
Deal found 6/12$176
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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.
Thu 8/2112:55 pmSJU - BWI
Nonstop3h 58mMultiple Airlines
Sun 8/2412:11 pmBWI - SJU
Nonstop3h 52mMultiple Airlines
Deal found 6/10$178
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/208:13 pmSJU - BWI
1 stop18h 28mFrontier
Sun 8/246:10 amBWI - SJU
1 stop8h 16mFrontier
Deal found 6/11$186
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/171:05 amSJU - IAD
1 stop6h 14mUnited Airlines
Sun 6/225:28 pmIAD - SJU
Nonstop3h 56mUnited Airlines
Deal found 6/9$191
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/146:05 amSJU - DCA
1 stop10h 35mAmerican Airlines
Sun 6/153:25 pmDCA - SJU
1 stop8h 43mAmerican Airlines
Deal found 6/12$215
This Southwest deal was found by Cheapflights users on 6/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/107:00 amSJU - DCA
1 stop12h 30mSouthwest
Thu 7/174:45 pmDCA - SJU
1 stop6h 30mSouthwest
Deal found 6/11$220
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/171:05 amSJU - DCA
1 stop9h 22mUnited Airlines
Sat 6/218:00 pmDCA - SJU
1 stop9h 30mUnited Airlines
Deal found 6/9$228
This JetBlue deal was found by Cheapflights users on 6/9. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/169:00 amSJU - DCA
1 stop7h 12mJetBlue
Mon 8/188:00 amDCA - SJU
Nonstop3h 57mJetBlue
Deal found 6/9$238
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/135:05 pmSJU - BWI
1 stop6h 54mAmerican Airlines
Mon 6/168:19 amBWI - SJU
1 stop15h 49mAmerican Airlines
Deal found 6/10$290
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/182:35 pmSJU - IAD
1 stop8h 20mDelta
Sat 6/2812:13 pmIAD - SJU
1 stop11h 41mDelta
Deal found 6/11$300
This Delta deal was found by Cheapflights users on 6/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/237:00 amSJU - DCA
1 stop11h 14mDelta
Wed 7/306:05 amDCA - SJU
1 stop10h 26mDelta
Deal found 6/9$320

Cheapflights Fare Finder

Customize your flight search to find flights from Luis Munoz Marin Intl to Washington, D.C. 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 June 12, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Washington, D.C.

Route

Depart

Return

Price

San JuanBaltimore

SJU - BWI

SJUBWI

San Juan Luis Munoz Marin Intl

Wed 7/9

1:21 am-5:20 am

Nonstop3h 59m

Baltimore/Washington

Tue 7/15

6:48 am-10:29 am

Nonstop3h 41m

$160

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Sun 9/21

9:07 am-7:21 pm

1 stop10h 14m

Washington, D.C. Dulles Intl

Thu 9/25

8:06 pm-2:34 am

1 stop6h 28m

$176

San JuanBaltimore

SJU - BWI

SJUBWI

San Juan Luis Munoz Marin Intl

Thu 8/21

12:55 pm-4:53 pm

Nonstop3h 58m

Baltimore/Washington

Sun 8/24

12:11 pm-4:03 pm

Nonstop3h 52m

$178

San JuanBaltimore

SJU - BWI

SJUBWI

San Juan Luis Munoz Marin Intl

Wed 8/20

8:13 pm-2:41 pm

1 stop18h 28m

Baltimore/Washington

Sun 8/24

6:10 am-2:26 pm

1 stop8h 16m

$186

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Thu 7/10

7:00 am-7:30 pm

1 stop12h 30m

Washington, D.C. Reagan-National

Thu 7/17

4:45 pm-11:15 pm

1 stop6h 30m

$220

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Wed 6/25

1:05 am-10:27 am

1 stop9h 22m

Washington, D.C. Reagan-National

Mon 6/30

2:00 pm-11:54 pm

1 stop9h 54m

$237

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Wed 7/16

9:00 am-4:12 pm

1 stop7h 12m

Washington, D.C. Reagan-National

Mon 8/18

8:00 am-11:57 am

Nonstop3h 57m

$238

San JuanWashington, D.C.

SJU - DCA

SJUDCA

San Juan Luis Munoz Marin Intl

Wed 7/23

7:00 am-6:14 pm

1 stop11h 14m

Washington, D.C. Reagan-National

Wed 7/30

6:05 am-4:31 pm

1 stop10h 26m

$320

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Tue 11/11

4:50 pm-11:57 pm

1 stop8h 07m

Washington, D.C. Dulles Intl

Tue 11/18

5:03 am-11:45 am

1 stop5h 42m

$327

San JuanWashington, D.C.

SJU - IAD

SJUIAD

San Juan Luis Munoz Marin Intl

Thu 7/24

7:30 am-4:25 pm

1 stop8h 55m

Washington, D.C. Dulles Intl

Mon 7/28

6:00 am-4:35 pm

1 stop10h 35m

$340

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 31 results
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The best insider tips for San Juan Luis Munoz Marin Intl Airport to Washington, D.C. 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 Washington, D.C. trip
Airports
SJU

Security wait times at SJU can vary dramatically, so arrive two hours early for domestic flights to avoid delays.

Read more about SJUby Brandon Schultz
IAD

The Silver Line Metro reaches IAD in under 40 minutes, offering a cheap and convenient way to reach Washington, D.C.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD

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 Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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 Washington, D.C.

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Washington, D.C.. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C., you should look to book at least 59 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 San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. (average of $241). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. in March is currently the most expensive (average of $290). 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 WAS?

Find hourly flight availability from Luis Munoz Marin Intl to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s optimal to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. at noon. By choosing this option you can save up to 35% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Washington, D.C.. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport to Washington, D.C. flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.

Explore weekly flight availability from Luis Munoz Marin Intl to Washington, D.C.. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from SJU to WAS are scheduled on a Thursday (4 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated June 12, 2025.
To help decide which airline to fly from San Juan to Washington, D.C., see what other customers have to say about Southwest, Delta and Avelo Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,287 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,946 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Avelo Airlines
7.5
Good
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,790 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,925 reviews
Southwest
8.0
Very good
4,287 reviews

Crew

8.6

Overall

8.0

Food

7.1

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

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

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. round-trip?

    Cheapflights users have booked flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. round-trip from $160. Other airlines that can offer you cheap pricing are Frontier, from $176, and Southwest, from $220. Spirit Airlines is currently priced 44% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $79. Spirit Airlines flights start at $80 while deals on American Airlines start at $84 one-way.

  • What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    When deciding which route to take from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. consider San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl, San Juan Luis Munoz Marin Intl - Washington, D.C. Reagan-National or San Juan Luis Munoz Marin Intl - Baltimore/Washington as they are the most popular.

  • What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    Before booking your flight to Washington, D.C. from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Southwest (90%), Spirit Airlines (77%), Frontier( 57%).

  • What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.?

    Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C.? While on average our users pay $212, our data indicates the cheapest price to be $74. The most popular route (San Juan Luis Munoz Marin Intl - Washington, D.C. Dulles Intl), is priced around $186.

  • Can I find deals for flights from Luis Munoz Marin Intl to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Washington, D.C.?

    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 Washington, D.C..

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to Washington, D.C. 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 Washington, D.C.?

    Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. (average of $241). Flying from San Juan Luis Munoz Marin Intl Airport to Washington, D.C. in March is currently the most expensive (average of $290). 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 San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas
Dundalk

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Alternative routes for Luis Munoz Marin Intl to Washington, D.C.

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

Top 7 airlines flying from Luis Munoz Marin Intl to Washington, D.C.

Discover the top 7 airlines that operate flights from Luis Munoz Marin Intl to Washington, D.C.. 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$258FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$99Average$222FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$164Average$465FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$233Average$389FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$245Average$379FlexibilityNo cancel feeOn-time62%
DeltaCheapest$246Average$395FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$305Average$435FlexibilityNo cancel feeOn-time63%

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