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$125+ 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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PHX
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
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 41 days in advance, depart on a Wednesday or Tuesday and return on a Wednesday

Cheap 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 May 11, 2026.

This United Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:35 pm
BOS
-
PHX
1 stop7h 50m
United Airlines
Mon 6/111:50 pm
PHX
-
BOS
1 stop6h 39m
United Airlines
Deal found 5/9$277
This Expedia deal was found by Cheapflights users on 5/7. 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.
Sat 5/2312:01 pm
BOS
-
PHX
1 stop13h 25m
Multiple Airlines
Wed 5/274:23 pm
PHX
-
BOS
1 stop10h 21m
Multiple Airlines
Deal found 5/7$279
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:04 pm
BOS
-
PHX
1 stop13h 14m
Frontier
Fri 8/712:35 am
PHX
-
BOS
1 stop30h 34m
Frontier
Deal found 5/10$280
This Mytrip deal was found by Cheapflights users on 5/7. 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.
Wed 7/1512:04 pm
BOS
-
PHX
1 stop13h 14m
Frontier
Sat 7/1812:35 am
PHX
-
BOS
1 stop30h 34m
Frontier
Deal found 5/7$281
This Southwest deal was found by Cheapflights users on 5/8. 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 6/32:25 pm
BOS
-
PHX
1 stop8h 00m
Southwest
Sat 6/612:05 pm
PHX
-
BOS
2 stops8h 10m
Southwest
Deal found 5/8$282
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.
Thu 11/512:35 pm
BOS
-
PHX
1 stop11h 54m
Frontier
Mon 11/911:30 pm
PHX
-
BOS
1 stop10h 10m
Frontier
Deal found 5/10$290
This Southwest deal was found by Cheapflights users on 5/6. 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.
Sun 5/248:55 am
BOS
-
PHX
2 stops13h 35m
Southwest
Sun 5/3111:55 pm
PHX
-
BOS
1 stop9h 45m
Southwest
Deal found 5/6$293
This American Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/66:20 am
BOS
-
PHX
Nonstop5h 49m
American Airlines
Sat 6/133:15 pm
PHX
-
BOS
Nonstop4h 59m
American Airlines
Deal found 5/7$294
This United Airlines deal was found by Cheapflights users on 5/8. 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.
Sat 5/233:54 pm
BOS
-
PHX
1 stop7h 48m
United Airlines
Wed 5/2711:50 pm
PHX
-
BOS
1 stop6h 49m
United Airlines
Deal found 5/8$295
This Alaska Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:20 am
BOS
-
PHX
1 stop12h 35m
Alaska Airlines
Thu 5/284:23 pm
PHX
-
BOS
1 stop10h 21m
Alaska Airlines
Deal found 5/9$297
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:53 am
BOS
-
AZA
1 stop7h 46m
Allegiant Air
Sat 8/291:39 pm
AZA
-
BOS
1 stop17h 25m
Allegiant Air
Deal found 5/9$335
This Kiwi.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:53 am
BOS
-
AZA
1 stop7h 46m
Allegiant Air
Sat 8/291:39 pm
AZA
-
BOS
1 stop17h 25m
Allegiant Air
Deal found 5/9$354

Find 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 May 11, 2026.

Round-trip from

$273
(Mytrip)

One-way from

$125
(Frontier)

Popular in

April

Cheapest in

January

Average price

$365
From Boston Logan Intl to Phoenix
Search Deals
One-way flight from Boston Logan Intl to Phoenix
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in May 2026
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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 May 11, 2026.
Use the filters below to find and compare flights from Boston to Phoenix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 6/5

5:55 pm-8:41 pm

Nonstop5h 46m

Phoenix Sky Harbor Intl

Mon 6/8

10:32 pm-6:30 am

Nonstop4h 58m

$297

BostonPhoenix

BOS - AZA

BOSAZA

Boston Logan Intl

Mon 8/24

11:53 am-4:39 pm

1 stop7h 46m

Phoenix-Mesa Gateway

Sat 8/29

1:39 pm-10:04 am

1 stop17h 25m

$335
Quickest round-trip

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 8/18

5:50 pm-8:28 pm

Nonstop5h 38m

Phoenix Sky Harbor Intl

Fri 8/21

10:23 pm-6:20 am

Nonstop4h 57m

$354

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 7/2

5:55 pm-8:37 pm

Nonstop5h 42m

Phoenix Sky Harbor Intl

Wed 7/15

10:32 pm-6:30 am

Nonstop4h 58m

$354

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 6/10

7:30 am-2:35 pm

2 stops10h 05m

Phoenix Sky Harbor Intl

Tue 6/16

5:05 am-5:05 pm

2 stops9h 00m

$361

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 9/25

6:05 pm-8:55 pm

Nonstop5h 50m

Phoenix Sky Harbor Intl

Wed 9/30

2:05 pm-11:52 pm

1 stop6h 47m

$364

BostonPhoenix

BOS - AZA

BOSAZA

Boston Logan Intl

Fri 8/21

11:53 am-4:39 pm

1 stop7h 46m

Phoenix-Mesa Gateway

Sat 8/29

1:39 pm-10:04 am

1 stop17h 25m

$365

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 6/11

5:55 pm-8:37 pm

Nonstop5h 42m

Phoenix Sky Harbor Intl

Sun 6/14

10:32 pm-6:30 am

Nonstop4h 58m

$367

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 8/11

5:51 am-10:52 am

1 stop8h 01m

Phoenix Sky Harbor Intl

Thu 8/20

11:05 pm-9:03 am

1 stop6h 58m

$374

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 9/17

5:40 am-12:20 pm

2 stops9h 40m

Phoenix Sky Harbor Intl

Sun 9/20

7:40 am-8:25 pm

1 stop9h 45m

$382

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 46 resultsSorted by cheapest first
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5

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?

Booking 61 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, August is the cheapest month in which you can book a flight from Boston to Phoenix (average of $125). Flying from Boston to Phoenix in June is currently the most expensive (average of $926). 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 May 11, 2026.

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 18% on your trip compared to booking a flight in the morning.

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 May 9, 2026.

Travelers seeking maximum savings on their Boston to Phoenix flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday 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 May 11, 2026.

The most flights from BOS to PH1 are scheduled on a Sunday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Boston to Phoenix?

How often are flights from Boston to Phoenix delayed?

About 18% of weekly flights between Boston and Phoenix have experienced delays in the past year, with the average delay time being 155 minutes.

What is the most punctual flight time for Boston to Phoenix flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Phoenix flights?

Over the last year, American Airlines have had the lowest number of delays on this route, with just 15% of flights being delayed.

The best insider tips for Boston to Phoenix flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Boston to Phoenix trip
Our travel experts
Brandon Schultz

Brandon Schultz

Expert on PHX

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

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

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 May 11, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
4,297 reviews
Southwest
8.0
Very good
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
8,451 reviews
Southwest
8.0
Very good
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
9,699 reviews
Southwest
8.0
Very good
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
2,973 reviews
Southwest
8.0
Very good
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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
11,665 reviews
Southwest
8.0
Very good
4,297 reviews

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Overall

8.0

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 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 10 daily outbound flights to Phoenix from 7 different airlines.

  • How long is the flight from Boston to Phoenix?

    Departing from Boston to Phoenix will take you 7h 44m. The distance from Boston to Phoenix is about 2293 mi. This flight may include one or multiple stops.

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

    Flying on Spirit Airlines is currently your cheapest option to Phoenix, with prices starting at $85. Additional round-trip tickets that might be worth considering are offered by JetBlue and Frontier, with the lowest prices starting at $125 and $127, respectively. Spirit Airlines is 77% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $76. Frontier flights start at $90 while deals on JetBlue start at $94 one-way.

  • 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 KLM (97%), Qatar Airways (92%) or EL AL (90%) 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 $123. While the most popular route (Boston Logan Intl - Phoenix Sky Harbor Intl) can be booked for $254 on average, our data indicates $1,036 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, August is the cheapest month in which you can book a flight from Boston to Phoenix (average of $125). Flying from Boston to Phoenix in June is currently the most expensive (average of $926). 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

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.

Top 7 airlines flying from Boston to Phoenix

Discover the top 7 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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$85Average$194FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$125Average$360FlexibilityNo cancel feeOn-time62%
FrontierCheapest$127Average$225FlexibilityNo cancel feeOn-time62%
DeltaCheapest$153Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$226Average$388FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$236Average$402FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$242Average$443FlexibilityNo cancel feeOn-time63%

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