Boston

$114+ Cheap flights from San Francisco to Boston (SFO - BOS)

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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BOS
Jan 28 — Feb 41
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Find cheap flights from San Francisco to Boston with Cheapflights

1. Tell us where you want to go
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The best prices from San Francisco to Boston Logan Intl are usually found in February or March, booked 79 days in advance, depart on a Wednesday or Tuesday and return on a Thursday

Cheap flight deals from San Francisco to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Boston (BOS). 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 January 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$216
(Frontier)

One-way from

$114
(JetBlue)

Popular in

June

Cheapest in

February

Average price

$327

Good round-trip deal

$261 or less

Good one-way deal

$163 or less
Provider with most accurate pricing for San Francisco-Boston Logan Intl flight deals.
Provider most trusted by Cheapflights users for San Francisco-Boston Logan Intl flights.
From San Francisco to Boston Logan Intl
One-way flight from San Francisco to Boston Logan Intl
Highest demand for flights based on searches. 13% potential increase in price ($58 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Average for round-trip flights in January 2025
Price to beat on a round-trip flight from San Francisco to Boston Logan Intl.
Price to beat on a one-way flight from San Francisco to Boston Logan Intl.

Find flight deals from San Francisco to Boston

Cheapest flights from San Francisco to Boston
Explore the most affordable flight options available from San Francisco to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

This Frontier deal was found by Cheapflights users on 1/21. 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.
Wed 5/711:53 pmSFO - BOS
1 stop8h 55mFrontier
Sun 5/1812:48 pmBOS - SFO
1 stop12h 35mFrontier
Deal found 1/21$216
This JetBlue deal was found by Cheapflights users on 1/23. 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.
Mon 3/311:20 pmSFO - BOS
Nonstop5h 30mJetBlue
Tue 3/410:05 amBOS - SFO
Nonstop6h 49mJetBlue
Deal found 1/23$221
This Orbitz deal was found by Cheapflights users on 1/22. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/67:35 amSFO - BOS
Nonstop5h 40mMultiple Airlines
Sat 5/1012:48 pmBOS - SFO
1 stop12h 35mMultiple Airlines
Deal found 1/22$223
This Delta deal was found by Cheapflights users on 1/22. 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.
Tue 4/2210:20 pmSFO - BOS
Nonstop5h 54mDelta
Mon 4/288:00 pmBOS - SFO
Nonstop6h 59mDelta
Deal found 1/22$229
This United Airlines deal was found by Cheapflights users on 1/21. 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 3/117:15 amSFO - BOS
Nonstop5h 35mUnited Airlines
Tue 3/184:41 pmBOS - SFO
1 stop9h 10mUnited Airlines
Deal found 1/21$233
This Alaska Airlines deal was found by Cheapflights users on 1/22. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/166:00 amSFO - BOS
1 stop14h 59mAlaska Airlines
Mon 2/244:23 pmBOS - SFO
1 stop18h 37mAlaska Airlines
Deal found 1/22$244
This American Airlines deal was found by Cheapflights users on 1/22. 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.
Wed 2/1212:32 amSFO - BOS
1 stop7h 26mAmerican Airlines
Wed 2/196:00 amBOS - SFO
1 stop9h 37mAmerican Airlines
Deal found 1/22$248
This Southwest deal was found by Cheapflights users on 1/22. 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 2/155:20 pmSFO - BOS
2 stops11h 25mSouthwest
Wed 2/196:55 amBOS - SFO
1 stop13h 45mSouthwest
Deal found 1/22$301
This Sun Country Air deal was found by Cheapflights users on 1/23. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:25 pmSFO - BOS
1 stop13h 12mSun Country Air
Tue 7/1511:34 amBOS - SFO
1 stop23h 34mSun Country Air
Deal found 1/23$365

Find flights from San Francisco to Boston within your budget

Customize your flight search to find flights from San Francisco to Boston 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 January 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 4/22

10:00 pm-12:50 am

1 stop23h 50m

Boston Logan Intl

Mon 4/28

12:48 pm-10:38 pm

1 stop12h 50m

$220

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 3/3

11:20 pm-7:50 am

Nonstop5h 30m

Boston Logan Intl

Tue 3/4

10:05 am-1:54 pm

Nonstop6h 49m

$221

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 4/15

7:44 am-4:27 pm

Nonstop5h 43m

Boston Logan Intl

Tue 4/15

7:59 pm-11:57 pm

Nonstop6h 58m

$223

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 2/20

1:15 pm-9:54 pm

Nonstop5h 39m

Boston Logan Intl

Mon 2/24

5:50 pm-9:56 pm

Nonstop7h 06m

$227

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Thu 2/6

10:00 am-11:59 pm

1 stop10h 59m

Boston Logan Intl

Mon 2/10

12:56 pm-7:50 pm

1 stop9h 54m

$228

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Mon 2/17

7:30 pm-7:20 am

1 stop8h 50m

Boston Logan Intl

Fri 2/21

5:54 pm-9:50 pm

Nonstop6h 56m

$233

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 4/15

12:16 am-1:09 pm

1 stop9h 53m

Boston Logan Intl

Wed 4/23

11:54 am-7:40 pm

1 stop10h 46m

$269

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Wed 3/19

7:20 pm-8:20 am

2 stops10h 00m

Boston Logan Intl

Sat 3/29

4:55 pm-12:50 am

2 stops10h 55m

$341

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Tue 7/8

6:25 pm-10:37 am

1 stop13h 12m

Boston Logan Intl

Tue 7/15

11:34 am-8:08 am

1 stop23h 34m

$365

San FranciscoBoston

SFO - BOS

SFOBOS

San Francisco

Sun 2/16

7:30 am-4:10 pm

Nonstop5h 40m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/23

Showing 1-10 of 18 results
1
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Compare providers for flights from San Francisco to Boston

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 Francisco to Boston in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
FlightsMojoPrice Accuracy-Trust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

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

  • Most accurate provider: When it comes to deals on San Francisco-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Boston 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 Francisco-Boston flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

The best insider tips for San Francisco to Boston flights

Find out what our experts recommend to make the most of your San Francisco to Boston trip
Airlines
JetBlue

JetBlue's Even More Space seats offer up to 38 inches of legroom, enhancing comfort.


JetBlue's free onboard Wi-Fi and seatback screens offer excellent entertainment options.

Read more about JetBlueby Blane Bachelor
Delta

Delta offers free Wi-Fi for SkyMiles members, enhancing productivity on domestic flights.


Delta's Comfort Plus provides extra legroom, early boarding, and complimentary drinks, ideal for comfort.

Read more about Deltaby Harriet Baskas
United Airlines

Economy Plus offers extra legroom and priority boarding, ideal for comfort on medium-haul flights.


Prepay checked bags 24 hours before to save fees; premium cabins include free checked bags.

Alaska Airlines

Alaska's Premium Class offers extra legroom and free cocktails, enhancing comfort on longer flights.


Saver Fare allows a carry-on onboard, unlike many basic economy fares, offering more flexibility.

Airports
SFO

For a quick departure, use the AirTrain Red Line to navigate between terminals after security at SFO.

Read more about SFOby Harriet Baskas
BOS

Use the MBTA Silver Line for a free ride from BOS to downtown Boston's South Station.

Read more about BOSby Paul Rubio
Our travel experts
Blane Bachelor

Blane Bachelor

Expert on JetBlue

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Harriet Baskas

Harriet Baskas

Expert on Delta, United Airlines and SFO

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
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more

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.

Best time to book a flight from San Francisco to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Francisco 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.

Travel insights for flights from San Francisco to Boston

Get recent, data-driven insights about flights from San Francisco to Boston including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from San Francisco to Boston?

Use this chart to determine the optimal time to book a round-trip flight from San Francisco to Boston. Price data was last updated on January 17, 2025.

The best time to book flights from San Francisco to Boston is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to Boston?

Currently, January is the cheapest month in which you can book a flight from San Francisco to Boston (average of $218). Flying from San Francisco to Boston in July is currently the most expensive (average of $311). 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 SFO to BOS?

Find hourly flight availability from San Francisco to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 23, 2025.

It’s typically best to fly out from San Francisco to Boston in the afternoon. Doing so could potentially save you 14% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from San Francisco to Boston?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Boston. Price data was last updated on January 21, 2025.

Travelers seeking maximum savings on their San Francisco to Boston flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to Boston

Explore weekly flight availability from San Francisco to Boston. 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 January 23, 2025.

The most flights from SFO to BOS are scheduled on a Thursday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated January 23, 2025.
Get a feel of what it's like to fly with Delta, Alaska Airlines and Southwest from San Francisco to Boston by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.1
Very good
4,647 reviews
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.0
Very good
9,699 reviews
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

8.0
Very good
8,508 reviews
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

7.4
Good
3,185 reviews
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

7.4
Good
8,970 reviews
8.1
Very good
4,647 reviews

Food

7.2

Overall

8.1

Comfort

8.1

Crew

8.7

Boarding

8.2

Entertainment

7.7

Reviews

1 / 10

Flight was delayed by one hour and 40 minutes. Also baggage was delivered late at Boston. This delay made me miss my connection from Boston to Hyderabad

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Boston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from San Francisco to Boston?

    To fly from San Francisco to Boston, you need to book a flight from San Francisco (SFO) to Logan Intl (BOS). Nonstop flights to Boston Logan Intl from San Francisco take 5h 30m on average. When it comes time to book airfare, you have a few options: there are 26 outbound flights from San Francisco to Logan Intl offered by 9 different airlines.

  • How popular is this San Francisco to Boston flight route?

  • What are the cheapest airlines flying from San Francisco to Boston round-trip?

    Currently priced at $216, Frontier will fly you from San Francisco to Boston and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from JetBlue and Delta - these airlines can fly you to your destination from $221 and $227, respectively. Frontier is 41% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Francisco to Boston one-way?

    To fly one-way, consider booking your trip with JetBlue, which is currently one of the cheapest options available, starting at $114. Delta flights start at $115 while deals on United Airlines start at $119 one-way.

  • What are the most reliable airlines from San Francisco to Boston?

    Consider Etihad Airways (100%), American Airlines (94%) or Fiji Airways (94%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Boston.

  • What are the cheapest flights from San Francisco to Boston?

    Looking at all options, your cheapest flight can be booked for $113. While the most popular route (San Francisco - Boston Logan Intl) can be booked for $185 on average our data indicates $929 when flying from San Francisco to Boston.

  • Where are the most common layover locations when flying from San Francisco to Boston?

  • What are some popular things to do or see while on a layover in New York?

    Times Square, New York City Center, and Madison Square Garden are the most popular attractions in New York if you're in need of something to do during your layover. Times Square, New York City Center, and Madison Square Garden can be visited by traveling about 13.6 mi, 13.6 mi, and 13.6 mi respectively from New York John F Kennedy Intl. Those on a layover in New York in need of a rental car can book one at New York John F Kennedy Intl for about $63.

  • Where are the least popular layover locations for San Francisco to Boston flights?

  • Can I find deals for flights from San Francisco to Boston that include hotel bookings?

    Yes. In addition to deals on San Francisco to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Boston?

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

  • Can I find deals for business class flights from San Francisco to Boston?

    Yes. Cheapflights offers flight deals from San Francisco to Boston 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 Francisco to Boston?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Boston (average of $218). Flying from San Francisco to Boston in July is currently the most expensive (average of $311). 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 Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Sturbridge
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Cambridge
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Framingham
Somerville
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Seekonk
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Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Francisco to Boston

See prices for flight routes from nearby airports that may be better suited for you.

Top 8 airlines flying from San Francisco to Boston

Discover the top 8 airlines that operate flights from San Francisco to Boston. 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 January 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$121Average$350FlexibilityNo cancel feeOn-time71%
FrontierCheapest$128Average$148FlexibilityNo cancel feeOn-time62%
DeltaCheapest$154Average$388FlexibilityNo cancel feeOn-timeN/A
Sun Country AirCheapest$162Average$325FlexibilityNo cancel feeOn-time83%
Alaska AirlinesCheapest$162Average$416FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$172Average$377FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$227Average$474FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$406Average$541FlexibilityNo cancel feeOn-time63%
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