HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Boston

$154+ Cheap flights from Sky Harbor Intl (PHX) to Boston (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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOS
Jun 14 — Jun 211
Sun 6/14
Sun 6/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sky Harbor Intl to Boston 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 Phoenix Sky Harbor Intl to Boston Logan Intl are usually found in January or February, booked 57 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap flight deals from Sky Harbor Intl to Boston

Cheapest flights from Sky Harbor Intl to Boston
Explore the most affordable flight options available from Sky Harbor Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 15, 2026.

This Delta deal was found by Cheapflights users on 5/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/510:27 pm
PHX
-
BOS
Nonstop4h 58m
Delta
Mon 6/86:05 am
BOS
-
PHX
1 stop9h 10m
Delta
Deal found 5/10$267
This Frontier deal was found by Cheapflights users on 5/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:51 pm
PHX
-
BOS
1 stop8h 18m
Frontier
Sat 10/2411:28 am
BOS
-
PHX
1 stop13h 11m
Frontier
Deal found 5/10$270
This Expedia deal was found by Cheapflights users on 5/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:20 am
PHX
-
BOS
1 stop19h 24m
Multiple Airlines
Wed 6/1012:01 pm
BOS
-
PHX
1 stop13h 19m
Multiple Airlines
Deal found 5/11$275
This Delta deal was found by Cheapflights users on 5/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:50 am
PHX
-
BOS
1 stop9h 59m
Delta
Sat 5/305:51 am
BOS
-
PHX
1 stop9h 43m
Delta
Deal found 5/12$277
This Delta deal was found by Cheapflights users on 5/11. 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.
Sun 5/3112:59 am
PHX
-
BOS
1 stop6h 58m
Delta
Tue 6/95:30 am
BOS
-
PHX
1 stop7h 26m
Delta
Deal found 5/11$278
This Mytrip deal was found by Cheapflights users on 5/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:35 am
PHX
-
BOS
1 stop30h 34m
Frontier
Wed 7/1512:04 pm
BOS
-
PHX
1 stop13h 14m
Frontier
Deal found 5/10$281
This American Airlines deal was found by Cheapflights users on 5/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/283:15 pm
PHX
-
BOS
Nonstop4h 59m
American Airlines
Tue 6/96:20 am
BOS
-
PHX
Nonstop5h 40m
American Airlines
Deal found 5/13$282
This American Airlines deal was found by Cheapflights users on 5/12. 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.
Fri 5/2910:15 pm
PHX
-
BOS
Nonstop4h 55m
American Airlines
Sat 6/69:41 am
BOS
-
PHX
Nonstop5h 42m
American Airlines
Deal found 5/12$283
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:44 pm
PHX
-
BOS
1 stop10h 21m
Frontier
Sun 9/1311:28 am
BOS
-
PHX
1 stop13h 11m
Frontier
Deal found 5/12$290
This Expedia deal was found by Cheapflights users on 5/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:13 pm
PHX
-
BOS
1 stop11h 27m
Multiple Airlines
Fri 8/2811:05 am
BOS
-
PHX
1 stop26h 22m
Multiple Airlines
Deal found 5/12$292
This American Airlines deal was found by Cheapflights users on 5/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/93:15 pm
PHX
-
BOS
Nonstop4h 59m
American Airlines
Tue 6/166:20 am
BOS
-
PHX
Nonstop5h 40m
American Airlines
Deal found 5/13$294
This United Airlines deal was found by Cheapflights users on 5/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2611:50 pm
PHX
-
BOS
1 stop6h 49m
United Airlines
Thu 5/285:35 pm
BOS
-
PHX
1 stop7h 50m
United Airlines
Deal found 5/12$295

Find flight deals from Sky Harbor Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) 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 May 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$267
(Delta)

One-way from

$154
(American Airlines)

Popular in

October

Cheapest in

January

Average price

$339

Good round-trip deal

$344 or less

Good one-way deal

$188 or less
Provider with most accurate pricing for Phoenix Sky Harbor Intl-Boston Logan Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Phoenix Sky Harbor Intl-Boston Logan Intl flights.
Search Deals
From Phoenix Sky Harbor Intl to Boston Logan Intl
Search Deals
One-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($18 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
Search Deals
Price to beat on a one-way flight from Phoenix Sky Harbor Intl to Boston Logan Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sky Harbor Intl 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 May 15, 2026.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Fri 5/29

12:59 am-10:57 am

1 stop6h 58m

Boston Logan Intl

Mon 6/1

5:55 pm-8:41 pm

Nonstop5h 46m

$307

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 6/3

10:27 pm-6:25 am

Nonstop4h 58m

Boston Logan Intl

Wed 6/10

5:55 am-10:46 am

1 stop7h 51m

$307

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 7/22

11:57 pm-9:51 am

1 stop6h 54m

Boston Logan Intl

Tue 7/28

7:19 am-12:26 pm

1 stop8h 07m

$329

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Fri 5/29

11:55 pm-1:35 pm

2 stops10h 40m

Boston Logan Intl

Mon 6/1

7:25 pm-11:50 pm

1 stop7h 25m

$330

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 8/26

2:26 pm-12:34 am

1 stop7h 08m

Boston Logan Intl

Mon 8/31

6:00 pm-10:46 pm

1 stop7h 46m

$334

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 8/5

5:42 pm-7:35 am

1 stop10h 53m

Boston Logan Intl

Tue 8/11

5:50 pm-8:28 pm

Nonstop5h 38m

$341

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Thu 5/28

10:27 pm-6:25 am

Nonstop4h 58m

Boston Logan Intl

Sun 5/31

6:10 am-12:09 pm

1 stop8h 59m

$347

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Fri 7/17

10:32 pm-6:30 am

Nonstop4h 58m

Boston Logan Intl

Sat 7/25

5:55 am-12:46 pm

1 stop9h 51m

$359

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Wed 7/8

10:50 am-10:40 pm

2 stops8h 50m

Boston Logan Intl

Wed 7/15

4:25 pm-10:15 pm

1 stop8h 50m

$366

PhoenixBoston

PHX - BOS

PHXBOS

Phoenix Sky Harbor Intl

Tue 9/15

10:50 am-10:10 pm

2 stops8h 20m

Boston Logan Intl

Tue 9/29

2:45 pm-9:15 pm

2 stops9h 30m

$371

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

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

Compare providers for flights from Sky Harbor Intl 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 Sky Harbor Intl to Boston in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
Justfly.comPrice Accuracy3 starsTrust 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 Phoenix Sky Harbor Intl Airport-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phoenix Sky Harbor Intl Airport-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phoenix Sky Harbor Intl Airport-Boston flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Phoenix Sky Harbor Intl Airport-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 Phoenix Sky Harbor Intl Airport-Boston 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 Sky Harbor Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Sky Harbor 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 Phoenix Sky Harbor Intl Airport to Boston

How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Boston?

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix Sky Harbor Intl Airport to Boston. 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 Phoenix Sky Harbor Intl Airport to Boston?

Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $232). Flying from Phoenix Sky Harbor Intl Airport to Boston in October is currently the most expensive (average of $378). 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 PHX to BOS?

Find hourly flight availability from Sky Harbor Intl 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 May 15, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 32% on flights from Phoenix Sky Harbor Intl Airport to Boston by exploring options for tickets in the evening.

What is the cheapest day to fly from Phoenix Sky Harbor Intl Airport to Boston?

Use this chart to determine the cheapest time to fly round-trip from Sky Harbor Intl to Boston. Price data was last updated on May 9, 2026.

Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Boston flight should consider departing on Wednesday at noon 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.

How much does it cost to fly round-trip from Phoenix Sky Harbor Intl Airport to Boston?

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 May 15, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines from Phoenix Sky Harbor Intl Airport to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,299 reviews
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,453 reviews
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,720 reviews
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
JetBlue
7.2
Good
2,974 reviews
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,662 reviews
Southwest
8.0
Very good
4,299 reviews

Overall

8.0

Boarding

8.1

Food

7.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from Sky Harbor Intl to Boston. 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 into for flights to Boston from Phoenix Sky Harbor Intl?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Boston from Phoenix Sky Harbor Intl. Booking flights from Phoenix Sky Harbor Intl to Logan Intl (BOS) should be relatively easy as there are 9 daily inbound flights from Phoenix Sky Harbor Intl from 8 different airlines.

  • How long is the flight from Phoenix Sky Harbor Intl Airport to Boston?

    For as low as $329, Delta can have you in Boston from Phoenix Sky Harbor Intl Airport in 6h 54m. The distance between Phoenix Sky Harbor Intl Airport and Boston is about 2293 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Boston round-trip?

    Flying on Frontier is currently your cheapest option to Boston, with prices starting at $70. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and JetBlue, with the lowest prices starting at $82 and $119, respectively. Frontier is currently priced 78% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Boston one-way?

    $80 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and JetBlue, with prices starting from $82 and $103, respectively.

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Boston?

    The top 3 most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Boston are Alaska Airlines (95%), EL AL (92%) and Qatar Airways (88%).

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Boston?

    Looking at all options, your cheapest flight can be booked for $123. While the most popular route (Phoenix Sky Harbor Intl - Boston Logan Intl) can be booked for $277 on average, our data indicates $959 when flying from Phoenix Sky Harbor Intl Airport to Boston.

  • Can I find deals for flights from Sky Harbor Intl to Boston that include hotel bookings?

    Yes. In addition to deals on Sky Harbor Intl to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sky Harbor Intl to Boston?

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

  • Can I find deals for business class flights from Sky Harbor Intl to Boston?

    Yes. Cheapflights offers flight deals from Sky Harbor Intl 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 Phoenix Sky Harbor Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Boston (average of $232). Flying from Phoenix Sky Harbor Intl Airport to Boston in October is currently the most expensive (average of $378). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Waltham
Medford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
York Beach
Seabrook
Londonderry
Swansea
Old Orchard Beach
Auburn
Quincy
Lowell

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 Sky Harbor Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Sky Harbor Intl to Hartford flights
Sky Harbor Intl to Albany flights
Sky Harbor Intl to Nantucket flights
Sky Harbor Intl to Worcester flights

Top 8 airlines flying from Sky Harbor Intl to Boston

Discover the top 8 airlines that operate flights from Sky Harbor Intl 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 May 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$70Average$171FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$82Average$179FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$119Average$284FlexibilityNo cancel feeOn-time62%
DeltaCheapest$151Average$327FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$158Average$351FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$221Average$321FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$228Average$265FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$235Average$396FlexibilityNo cancel feeOn-time71%

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.