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Reagan-National

$176+ Cheap flights from San Diego (SAN) to Reagan-National (DCA)

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.
SAN — DCA
Aug 16 — Aug 231
Sun 8/16
Sun 8/23
1 adult, Economy
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Find cheap flights from San Diego to Reagan-National with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Diego to Washington, D.C. Reagan-National are usually found in January or February, booked 62 days in advance, depart on a Thursday or Friday and return on a Thursday

Cheap flight deals from San Diego to Reagan-National

Cheapest flights from San Diego to Reagan-National
Explore the most affordable flight options available from San Diego to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 17, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:45 pm
SAN
-
DCA
1 stop18h 06m
Frontier
Mon 9/76:00 pm
DCA
-
SAN
2 stops29h 15m
Frontier
Deal found 7/17$346
This Southwest deal was found by Cheapflights users on 7/13. 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.
Sat 8/2910:45 am
SAN
-
DCA
1 stop7h 10m
Southwest
Sat 9/510:40 am
DCA
-
SAN
2 stops9h 30m
Southwest
Deal found 7/13$347
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:25 am
SAN
-
DCA
1 stop12h 34m
Frontier
Mon 8/36:00 pm
DCA
-
SAN
1 stop8h 51m
Frontier
Deal found 7/15$348
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:25 am
SAN
-
DCA
1 stop27h 26m
Frontier
Mon 8/107:00 am
DCA
-
SAN
2 stops16h 06m
Frontier
Deal found 7/15$349
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Fri 8/216:25 am
SAN
-
DCA
1 stop12h 34m
Multiple Airlines
Mon 8/2410:59 am
DCA
-
SAN
Nonstop5h 38m
Multiple Airlines
Deal found 7/14$350
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/306:25 am
SAN
-
DCA
1 stop12h 34m
Frontier
Tue 8/46:00 pm
DCA
-
SAN
2 stops23h 08m
Frontier
Deal found 7/13$352
This Priceline deal was found by Cheapflights users on 7/13. 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.
Mon 8/1712:42 pm
SAN
-
DCA
Nonstop5h 18m
Multiple Airlines
Fri 8/216:00 pm
DCA
-
SAN
1 stop8h 51m
Multiple Airlines
Deal found 7/13$353
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Sat 7/2512:42 pm
SAN
-
DCA
Nonstop5h 18m
Multiple Airlines
Mon 8/106:00 pm
DCA
-
SAN
1 stop8h 51m
Multiple Airlines
Deal found 7/13$354
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:25 am
SAN
-
DCA
1 stop7h 34m
Frontier
Sun 8/166:00 pm
DCA
-
SAN
1 stop8h 51m
Frontier
Deal found 7/15$355
This Trip.com deal was found by Cheapflights users on 7/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:25 am
SAN
-
DCA
1 stop7h 34m
Frontier
Mon 8/176:00 pm
DCA
-
SAN
1 stop8h 51m
Frontier
Deal found 7/14$356
This Kiwi.com deal was found by Cheapflights users on 7/12. 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.
Sat 8/810:10 am
SAN
-
DCA
1 stop8h 49m
Multiple Airlines
Fri 8/148:59 am
DCA
-
SAN
Nonstop5h 40m
Multiple Airlines
Deal found 7/12$357
This Expedia deal was found by Cheapflights users on 7/13. 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 8/66:25 am
SAN
-
DCA
1 stop27h 26m
Multiple Airlines
Tue 8/118:59 am
DCA
-
SAN
Nonstop5h 40m
Multiple Airlines
Deal found 7/13$358

Find flight deals from San Diego to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Reagan-National (DCA). 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 July 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$346
(Kiwi.com)

One-way from

$176
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$486

Good round-trip deal

$397 or less

Good one-way deal

$228 or less
Provider with most accurate pricing for San Diego-Washington, D.C. Reagan-National flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Washington, D.C. Reagan-National flights.
Search Deals
From San Diego to Washington, D.C. Reagan-National
Search Deals
One-way flight from San Diego to Washington, D.C. Reagan-National
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from San Diego to Washington, D.C. Reagan-National.
Search Deals
Price to beat on a one-way flight from San Diego to Washington, D.C. Reagan-National.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Reagan-National 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 July 17, 2026.
Use the filters below to find and compare flights from San Diego to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 8/29

10:45 am-8:55 pm

1 stop7h 10m

Washington, D.C. Reagan-National

Sat 9/5

10:40 am-5:10 pm

2 stops9h 30m

$347

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 8/26

7:00 am-5:59 pm

1 stop7h 59m

Washington, D.C. Reagan-National

Sat 8/29

10:59 am-1:37 pm

Nonstop5h 38m

$347

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 10/7

7:05 am-11:00 pm

2 stops12h 55m

Washington, D.C. Reagan-National

Sat 10/10

6:55 am-4:35 pm

2 stops12h 40m

$352

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 9/14

8:25 am-10:45 pm

2 stops11h 20m

Washington, D.C. Reagan-National

Wed 9/16

9:35 am-6:20 pm

2 stops11h 45m

$377

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 9/30

9:05 am-10:20 pm

2 stops10h 15m

Washington, D.C. Reagan-National

Mon 10/5

4:55 pm-10:40 pm

2 stops8h 45m

$392

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 8/13

12:42 pm-9:00 pm

Nonstop5h 18m

Washington, D.C. Reagan-National

Sun 8/16

8:59 am-11:39 am

Nonstop5h 40m

$397

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 9/4

10:10 am-11:20 pm

2 stops10h 10m

Washington, D.C. Reagan-National

Wed 9/9

12:05 pm-6:20 pm

2 stops9h 15m

$397

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 8/29

12:01 pm-11:59 pm

1 stop8h 58m

Washington, D.C. Reagan-National

Tue 9/1

1:04 pm-10:47 pm

2 stops12h 43m

$442

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 9/30

7:15 am-9:59 pm

1 stop11h 44m

Washington, D.C. Reagan-National

Sun 10/4

10:59 am-1:37 pm

Nonstop5h 38m

$444
Quickest round-trip

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Tue 8/18

12:42 pm-9:00 pm

Nonstop5h 18m

Washington, D.C. Reagan-National

Fri 8/21

10:59 am-1:37 pm

Nonstop5h 38m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from San Diego to Reagan-National

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 San Diego to Reagan-National in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

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

  • Most accurate provider: When it comes to deals on San Diego-Washington, D.C. Reagan-National Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Washington, D.C. Reagan-National Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Washington, D.C. Reagan-National Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Washington, D.C. Reagan-National Airport flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Diego-Washington, D.C. Reagan-National 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 San Diego to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from San Diego 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 Diego to Washington, D.C. Reagan-National Airport

How far ahead should I book a flight from San Diego to Washington, D.C. Reagan-National Airport?

The price you pay for your flight from San Diego to Washington, D.C. Reagan-National Airport may vary depending on when you book. For the best chance of a lower fare, look to book 61 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 Diego to Washington, D.C. Reagan-National Airport?

Currently, January is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $296). Flying from San Diego to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $486). 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 SAN to DCA?

Find hourly flight availability from San Diego to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 17, 2026.

When flying from San Diego to Washington, D.C. Reagan-National Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from San Diego to Washington, D.C. Reagan-National Airport?

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. 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 Reagan-National. Reviews last updated July 17, 2026.
Read reviews from past customers who have flown Southwest,Alaska Airlines, andDelta from San Diego to Washington, D.C. Reagan-National Airport. 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
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Southwest
8.0
Very good
4,243 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Alaska Airlines
7.9
Good
12,671 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Delta
7.8
Good
8,476 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
United Airlines
7.4
Good
10,006 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.
Frontier
5.6
Fair
2,794 reviews
Southwest
8.0
Very good
4,243 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
6.0
Good

Lauren,Dec 2024

MCI - DCA

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Reagan-National. 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 San Diego to Washington, D.C. Reagan-National?

    If you book a flight to Washington, D.C. Reagan-National from San Diego, you will be flying from San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There is 1 flight from San Diego to Washington, D.C. Reagan-National per day from 8 different airlines.

  • How long is the flight from San Diego to Washington, D.C. Reagan-National Airport?

    For as low as $347, Southwest can have you in Washington, D.C. Reagan-National Airport from San Diego in 7h 10m. The distance from San Diego to Washington, D.C. Reagan-National Airport is about 2270 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 Diego to Washington, D.C. Reagan-National Airport round-trip?

    Frontier, at $130, was found to be the cheapest airline from San Diego to Washington, D.C. Reagan-National Airport.Alternate airlines to your destination round-trip include JetBlue and American Airlines. You may be able to fly from San Diego to Washington, D.C. Reagan-National Airport for 65% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Diego to Washington, D.C. Reagan-National Airport one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $92. Users have also found prices from $118 and $125 on Hawaiian Airlines and Frontier, respectively.

  • What are the cheapest flights from San Diego to Washington, D.C. Reagan-National Airport?

    Looking for the cheapest flight from San Diego to Washington, D.C. Reagan-National Airport? While on average our users pay $400, our data indicates the cheapest price to be $198. The most popular route (San Diego - Washington, D.C. Reagan-National), is priced around $222.

  • Can I find deals for flights from San Diego to Reagan-National that include hotel bookings?

    Yes. In addition to deals on San Diego to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Reagan-National.

  • Can I find deals for business class flights from San Diego to Reagan-National?

    Yes. Cheapflights offers flight deals from San Diego to Reagan-National 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 Diego to Washington, D.C. Reagan-National Airport?

    Currently, January is the cheapest month in which you can book a flight from San Diego to Washington, D.C. Reagan-National Airport (average of $296). Flying from San Diego to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of $486). 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 Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Fredericksburg
Falls Church
Hanover
Laurel
Clinton
Hunt Valley
Cordova
Woodbridge
Silver Spring

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Alternative routes for San Diego to Reagan-National

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights
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Las Vegas to Reagan-National flights
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Santa Ana to Baltimore flights
San Jose to Baltimore flights
Oakland to Baltimore flights
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Sacramento to Baltimore flights
Burbank to Baltimore flights
Oakland to Reagan-National flights
Burbank to Reagan-National flights
Fresno to Dulles Intl flights
Reno to Dulles Intl flights
Fresno to Reagan-National flights
Long Beach to Dulles Intl flights
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Reno to Baltimore flights
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San Luis Obispo to Baltimore flights
San Luis Obispo to Dulles Intl flights
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Palm Springs to Baltimore flights
Long Beach to Baltimore flights
Long Beach to Reagan-National flights
Santa Barbara to Dulles Intl flights
Medford to Baltimore flights
Monterey to Dulles Intl flights
Medford to Reagan-National flights

Top 8 airlines flying from San Diego to Reagan-National

Discover the top 8 airlines that operate flights from San Diego to Reagan-National. 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 July 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$264FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$147Average$287FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$236Average$416FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$237Average$410FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$252Average$379FlexibilityNo cancel feeOn-time63%
Hawaiian AirlinesCheapest$257Average$297FlexibilityNo cancel feeOn-time85%
United AirlinesCheapest$276Average$396FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$476FlexibilityNo cancel feeOn-timeN/A

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