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$142+ Cheap flights from Boston (BOS) to Phoenix

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PHX
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Phoenix are usually found in January or August, booked 33 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Boston to Phoenix

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Phoenix (PH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$247
(Mytrip)

One-way from

$142
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$311
From Boston Logan Intl to Phoenix
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One-way flight from Boston Logan Intl to Phoenix
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boston to Phoenix

Cheapest flights from Boston to Phoenix
Explore the most affordable flight options available from Boston to Phoenix. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:50 amBOS - PHX
1 stop9h 33mSpirit Airlines
Mon 9/2912:01 pmPHX - BOS
3 stops22h 47mSpirit Airlines
Deal found 8/11$247
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:50 pmBOS - PHX
Nonstop5h 34mDelta
Mon 9/1510:54 pmPHX - BOS
Nonstop5h 01mDelta
Deal found 8/14$248
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:50 pmBOS - PHX
Nonstop5h 35mDelta
Sat 9/612:16 pmPHX - BOS
1 stop8h 40mDelta
Deal found 8/14$249
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/169:50 amBOS - PHX
1 stop8h 15mMultiple Airlines
Mon 10/2012:14 pmPHX - BOS
1 stop8h 41mMultiple Airlines
Deal found 8/12$250
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:45 amBOS - PHX
1 stop10h 45mAlaska Airlines
Fri 9/54:30 pmPHX - BOS
1 stop10h 55mAlaska Airlines
Deal found 8/12$251
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/224:40 pmBOS - PHX
1 stop9h 33mDelta
Wed 10/2912:10 pmPHX - BOS
Nonstop4h 56mDelta
Deal found 8/14$252
This JetBlue deal was found by Cheapflights users on 8/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/305:00 pmBOS - PHX
Nonstop6h 01mJetBlue
Wed 11/512:45 pmPHX - BOS
1 stop8h 26mJetBlue
Deal found 8/12$253
This Southwest deal was found by Cheapflights users on 8/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/56:45 amBOS - PHX
2 stops9h 25mSouthwest
Fri 11/72:20 pmPHX - BOS
1 stop7h 35mSouthwest
Deal found 8/14$254
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1212:59 pmBOS - PHX
1 stop27h 27mMultiple Airlines
Sun 9/1412:01 pmPHX - BOS
1 stop8h 56mMultiple Airlines
Deal found 8/14$255
This FlightHub deal was found by Cheapflights users on 8/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:20 amBOS - PHX
1 stop18h 44mSpirit Airlines
Mon 10/1310:59 pmPHX - BOS
1 stop20h 54mSpirit Airlines
Deal found 8/13$256
This Delta deal was found by Cheapflights users on 8/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:50 pmBOS - PHX
Nonstop5h 34mDelta
Sun 9/1410:54 pmPHX - BOS
Nonstop5h 01mDelta
Deal found 8/14$257
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 8/2510:39 amBOS - AZA
1 stop13h 11mAllegiant Air
Sat 8/309:51 amAZA - BOS
1 stop19h 41mAllegiant Air
Deal found 8/12$293

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Phoenix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Boston to Phoenix that are best for you.

Fly from

Boston

Fly to

Phoenix

Route

Depart

Return

Price

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 11/5

5:00 pm-10:40 pm

1 stop7h 40m

Phoenix Sky Harbor Intl

Sat 11/8

9:30 am-9:55 pm

2 stops10h 25m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 10/2

6:59 pm-9:51 pm

Nonstop5h 52m

Phoenix Sky Harbor Intl

Mon 10/6

10:55 pm-6:46 am

Nonstop4h 51m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 9/12

6:50 pm-9:24 pm

Nonstop5h 34m

Phoenix Sky Harbor Intl

Sat 9/13

10:54 pm-6:55 am

Nonstop5h 01m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 10/31

5:00 pm-8:01 pm

Nonstop6h 01m

Phoenix Sky Harbor Intl

Mon 11/3

10:20 pm-5:01 am

Nonstop4h 41m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sat 10/25

8:10 am-10:51 am

Nonstop5h 41m

Phoenix Sky Harbor Intl

Fri 10/31

12:10 pm-8:06 pm

Nonstop4h 56m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 10/28

9:10 am-4:25 pm

2 stops10h 15m

Phoenix Sky Harbor Intl

Tue 11/11

6:30 am-4:05 pm

1 stop7h 35m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 10/30

5:00 pm-8:01 pm

Nonstop6h 01m

Phoenix Sky Harbor Intl

Sat 11/8

10:12 pm-4:53 am

Nonstop4h 41m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 9/4

6:50 pm-9:25 pm

Nonstop5h 35m

Phoenix Sky Harbor Intl

Sun 9/7

10:35 pm-6:41 am

Nonstop5h 06m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 10/31

5:00 pm-8:01 pm

Nonstop6h 01m

Phoenix Sky Harbor Intl

Thu 11/6

10:20 pm-5:01 am

Nonstop4h 41m

$248

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 9/26

6:50 pm-9:24 pm

Nonstop5h 34m

Phoenix Sky Harbor Intl

Sat 9/27

10:54 pm-6:55 am

Nonstop5h 01m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 38 results
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The best insider tips for Boston to Phoenix 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 Boston to Phoenix trip
Airports
BOS

Use the FlyLogan App to pre-order food and save time at BOS. Most eateries participate, ensuring your meal is ready for pick-up.

Read more about BOSby Paul Rubio
PHX

For quick access to downtown Phoenix, take the light rail from 44th Street Station. It’s a fast and economical option from PHX.

Read more about PHXby Brandon Schultz
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on PHX

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
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

Best time to book a flight from Boston to Phoenix

Have a flexible travel schedule? Discover the best time to fly to Phoenix from Boston 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 Boston to Phoenix

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

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

Booking 33 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Phoenix. 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 Boston to Phoenix?

Currently, January is the cheapest month in which you can book a flight from Boston to Phoenix (average of $258). Flying from Boston to Phoenix in March is currently the most expensive (average of $337). 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 BOS to PHX?

Find hourly flight availability from Boston to Phoenix. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Phoenix in the evening. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from Boston to Phoenix?

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

Travelers seeking maximum savings on their Boston to Phoenix flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Boston to Phoenix

Explore weekly flight availability from Boston to Phoenix. 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 August 14, 2025.

The most flights from BOS to PH1 are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Phoenix

Get insights into the airlines that provide service to Phoenix. 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 Phoenix. Reviews last updated August 14, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Boston to Phoenix by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
JetBlue
7.2
Good
2,914 reviews
Southwest
8.0
Very good
4,244 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Boston to Phoenix. 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 Boston to Phoenix?

    Located just 2.6 mi from the city center, Boston Logan Intl is the airport most travelers will use when flying to Phoenix from Boston. Booking flights from Logan Intl (BOS) to Phoenix should be relatively easy as there are 7 daily outbound flights to Phoenix from 8 different airlines.

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

    Flying on Frontier is currently your cheapest option to Phoenix, with prices starting at $95. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Delta, with the lowest prices starting at $106 and $119, respectively. Frontier is 72% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the most reliable airlines from Boston to Phoenix?

    No one likes to see their flight delayed. When booking a flight from Boston to Phoenix consider choosing American Airlines (82%), British Airways (62%) or Etihad Airways (61%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Boston to Phoenix?

    Looking at all options, your cheapest flight can be booked for $140. While the most popular route (Boston Logan Intl - Phoenix Sky Harbor Intl) can be booked for $169 on average our data indicates $1,006 when flying from Boston to Phoenix.

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

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

  • How can I find direct flights from Boston to Phoenix?

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

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

    Yes. Cheapflights offers flight deals from Boston to Phoenix 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 Boston to Phoenix?

    Currently, January is the cheapest month in which you can book a flight from Boston to Phoenix (average of $258). Flying from Boston to Phoenix in March is currently the most expensive (average of $337). 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

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Top 8 airlines flying from Boston to Phoenix

Discover the top 8 airlines that operate flights from Boston to Phoenix. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$195FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$106Average$195FlexibilityNo cancel feeOn-time65%
DeltaCheapest$119Average$325FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$176Average$308FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$217Average$413FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$233Average$389FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$250Average$448FlexibilityNo cancel feeOn-time63%
Sun Country AirCheapest$305Average$315FlexibilityNo cancel feeOn-time83%

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