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Cheap flights from Boston to Phoenix from $90

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Phoenix departing on 11/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Spirit Airlines Logo
6:00 am - 12:09 pmBOS-PHX
8h 09m1 stop
Spirit Airlines Logo
1:45 pm - 11:25 pmPHX-BOS
7h 40m1 stop
$193Spirit Airlines
Find Deal
Fri, Nov 7 - Sat, Nov 15
Spirit Airlines Logo
6:20 am - 10:04 pmBOS-PHX
18h 44m1 stop
Spirit Airlines Logo
10:59 pm - 10:43 pmPHX-BOS
20h 44m1 stop
$197Spirit Airlines
Find Deal
Thu, Sep 11 - Mon, Sep 15
Spirit Airlines Logo
6:20 am - 10:04 pmBOS-PHX
18h 44m1 stop
Spirit Airlines Logo
12:14 pm - 11:55 pmPHX-BOS
8h 41m1 stop
$200Spirit Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
Spirit Airlines Logo
6:20 am - 10:04 pmBOS-PHX
18h 44m1 stop
Spirit Airlines Logo
10:59 pm - 10:43 pmPHX-BOS
20h 44m1 stop
$201Spirit Airlines
Find Deal
Sun, Sep 14 - Fri, Sep 19
Delta Logo
8:10 am - 10:51 amBOS-PHX
5h 41mnonstop
Delta Logo
1:10 pm - 8:02 pmPHX-BOS
4h 52mnonstop
$231Delta
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Sat, Nov 1 - Wed, Nov 5
Delta Logo
5:40 pm - 8:13 pmBOS-PHX
5h 33mnonstop
Delta Logo
10:54 pm - 6:55 amPHX-BOS
5h 01mnonstop
$235Delta
Find Deal
Sat, Sep 20 - Sat, Sep 27
American Airlines Logo
9:50 am - 12:27 pmBOS-PHX
5h 37mnonstop
American Airlines Logo
3:59 pm - 11:54 pmPHX-BOS
4h 55mnonstop
$239American Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Frontier Logo
9:40 am - 4:16 pmBOS-PHX
9h 36m1 stop
Frontier Logo
4:59 pm - 7:52 amPHX-BOS
11h 53m1 stop
$258Frontier
Find Deal
Sat, Aug 16 - Wed, Aug 20
United Airlines Logo
5:30 am - 11:33 amBOS-PHX
8h 03m1 stop
United Airlines Logo
10:53 am - 7:55 pmPHX-BOS
7h 02m1 stop
$261United Airlines
Find Deal
Mon, Nov 3 - Wed, Nov 5
American Airlines Logo
6:00 am - 8:57 amBOS-PHX
5h 57mnonstop
American Airlines Logo
3:59 pm - 11:58 pmPHX-BOS
4h 59mnonstop
$262American Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18

Spirit Airlines flights from Boston to Phoenix Sky Harbor Intl Airport

Our best Spirit Airlines deals on Boston to Phoenix Sky Harbor Intl Airport flight tickets
Spirit Airlines
Nov 7
BOS6:00 amBoston Logan Intl
8h 09m
1 stop
PHX12:09 pmPhoenix Sky Harbor Intl
Nov 15
PHX1:45 pmPhoenix Sky Harbor Intl
7h 40m
1 stop
BOS11:25 pmBoston Logan Intl
$193
Find similar
Spirit Airlines
Sep 11
BOS6:20 amBoston Logan Intl
18h 44m
1 stop
PHX10:04 pmPhoenix Sky Harbor Intl
Sep 15
PHX10:59 pmPhoenix Sky Harbor Intl
20h 44m
1 stop
BOS10:43 pmBoston Logan Intl
$197
Find similar
Spirit Airlines
Sep 25
BOS6:20 amBoston Logan Intl
18h 44m
1 stop
PHX10:04 pmPhoenix Sky Harbor Intl
Sep 29
PHX12:14 pmPhoenix Sky Harbor Intl
8h 41m
1 stop
BOS11:55 pmBoston Logan Intl
$200
Find similar

Frontier flights from Boston to Phoenix Sky Harbor Intl Airport

Our best Frontier deals on Boston to Phoenix Sky Harbor Intl Airport flight tickets
Frontier
Aug 16
BOS9:40 amBoston Logan Intl
9h 36m
1 stop
PHX4:16 pmPhoenix Sky Harbor Intl
Aug 20
PHX4:59 pmPhoenix Sky Harbor Intl
11h 53m
1 stop
BOS7:52 amBoston Logan Intl
$258
Find similar
Frontier
Jul 31
BOS12:57 pmBoston Logan Intl
29h 50m
1 stop
PHX3:47 pmPhoenix Sky Harbor Intl
Aug 2
PHX4:56 pmPhoenix Sky Harbor Intl
11h 56m
1 stop
BOS7:52 amBoston Logan Intl
$287
Find similar
Frontier
Jul 31
BOS12:57 pmBoston Logan Intl
29h 50m
1 stop
PHX3:47 pmPhoenix Sky Harbor Intl
Aug 2
PHX4:56 pmPhoenix Sky Harbor Intl
11h 56m
1 stop
BOS7:52 amBoston Logan Intl
$288
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Phoenix Sky Harbor Intl Airport 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, momondo users made 832,500 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Boston to Phoenix Sky Harbor Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Fri 11/7

6:00 am-12:09 pm

1 stop8h 09m

Phoenix Sky Harbor Intl

Sat 11/15

1:45 pm-11:25 pm

1 stop7h 40m

$193

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 9/11

6:20 am-10:04 pm

1 stop18h 44m

Phoenix Sky Harbor Intl

Mon 9/15

10:59 pm-10:43 pm

1 stop20h 44m

$197

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 9/25

6:20 am-10:04 pm

1 stop18h 44m

Phoenix Sky Harbor Intl

Mon 9/29

12:14 pm-11:55 pm

1 stop8h 41m

$200

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sun 9/14

6:20 am-10:04 pm

1 stop18h 44m

Phoenix Sky Harbor Intl

Fri 9/19

10:59 pm-10:43 pm

1 stop20h 44m

$201

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sat 11/1

8:10 am-10:51 am

Nonstop5h 41m

Phoenix Sky Harbor Intl

Wed 11/5

1:10 pm-8:02 pm

Nonstop4h 52m

$231

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sat 9/20

5:40 pm-8:13 pm

Nonstop5h 33m

Phoenix Sky Harbor Intl

Sat 9/27

10:54 pm-6:55 am

Nonstop5h 01m

$235

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 9/10

9:50 am-12:27 pm

Nonstop5h 37m

Phoenix Sky Harbor Intl

Wed 9/17

3:59 pm-11:54 pm

Nonstop4h 55m

$239

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sat 8/16

9:40 am-4:16 pm

1 stop9h 36m

Phoenix Sky Harbor Intl

Wed 8/20

4:59 pm-7:52 am

1 stop11h 53m

$258

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Mon 11/3

5:30 am-11:33 am

1 stop8h 03m

Phoenix Sky Harbor Intl

Wed 11/5

10:53 am-7:55 pm

1 stop7h 02m

$261

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 10/15

6:00 am-8:57 am

Nonstop5h 57m

Phoenix Sky Harbor Intl

Sat 10/18

3:59 pm-11:58 pm

Nonstop4h 59m

$262

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Boston to Phoenix Sky Harbor Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Phoenix Sky Harbor Intl Airport?

In general, January is the cheapest month to fly from Boston to Phoenix Sky Harbor Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $259. If you are unable to visit Phoenix Sky Harbor Intl Airport during the month of January, then departing from Boston during the month August is also very affordable. Most momondo users find prices during this month for around $283.

What is the cheapest day to depart on your flight to Phoenix Sky Harbor Intl Airport?

On average, the least expensive day to fly to Phoenix Sky Harbor Intl Airport from Boston is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $351. However, this price may fluctuate depending on the airline, the season, and holidays. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $439. These prices are subject to change though, so be sure to set up a Price Alert for flights to Phoenix Sky Harbor Intl Airport.

What is the cheapest time of day to depart on your flight to Phoenix Sky Harbor Intl Airport?

In the evening is the cheapest time of day to fly from Boston to Phoenix Sky Harbor Intl Airport when you can find flight prices for as low as $294. Flying to Phoenix Sky Harbor Intl Airport in the evening is an ideal time because this is during off-peak travel hours. Try not to purchase tickets at noon because they tend to be around $424. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Boston Logan Intl to Phoenix Sky Harbor Intl flight route?

Fly from Boston Logan Intl to Phoenix Sky Harbor Intl for the best Boston Logan Intl - Phoenix Sky Harbor Intl flight prices

How far in advance should I book a flight to Phoenix Sky Harbor Intl Airport?

You are more likely to see cheaper flights to Phoenix Sky Harbor Intl Airport from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Phoenix Sky Harbor Intl Airport for around $343 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Phoenix Sky Harbor Intl Airport from Boston for as low as $307 on momondo.

What cabin class options are available on Boston Logan Intl to Phoenix Sky Harbor Intl flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to Phoenix Sky Harbor Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Phoenix Sky Harbor Intl Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a Boston to Phoenix Sky Harbor Intl Airport flight.

How have Boston to Phoenix Sky Harbor Intl Airport flight prices changed over time?

As of July 2025, prices for Boston to Phoenix Sky Harbor Intl Airport flights are approximately 22% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Phoenix Sky Harbor Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Phoenix Sky Harbor Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Phoenix Sky Harbor Intl Airport (BOS to PHX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Phoenix Sky Harbor Intl Airport

Best Price Found

$90

Fastest flight time

5h 33m

Direct flights

Every day
The best one-way flight to Phoenix Sky Harbor Intl Airport from Boston in the past 72 hours is $90. The best round-trip flight deal from Boston to Phoenix Sky Harbor Intl Airport found on momondo in the last 72 hours is $193.
The fastest flight from Boston to Phoenix Sky Harbor Intl Airport takes 5h 33m
Direct flights go from Boston to Phoenix Sky Harbor Intl Airport every day.
Search flight deals

  • How far is Boston Logan Intl to Phoenix Sky Harbor Intl by plane?

    A flight from Boston Logan Intl to Phoenix Sky Harbor Intl will travel around 2290.1 mi. Flights usually cover this in 5h 33m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Phoenix Sky Harbor Intl Airport?

    Prices for flights from Boston Logan Intl Airport to Phoenix Sky Harbor Intl Airport were last updated today.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Phoenix Sky Harbor Intl Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Phoenix Sky Harbor Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Phoenix Sky Harbor Intl Airport.

  • What documentation or ID do you need to fly to Phoenix Sky Harbor Intl Airport?

    The travel and health documents required for your trip to Phoenix Sky Harbor Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Phoenix Sky Harbor Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Boston to Phoenix Sky Harbor Intl Airport?

  • What is the most popular airline from Boston to Phoenix Sky Harbor Intl Airport?

Best airlines flying from Boston to Phoenix Sky Harbor Intl Airport

Compare and see reviews for airlines that fly from Boston to Phoenix Sky Harbor Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $95Free CancellationRating
5.9
3,238 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $101Free CancellationRating
6.3
8,040 reviews
Search Spirit Airlines flights
DeltaPriceFrom $172Free CancellationRating
8.0
7,977 reviews
Search Delta flights
JetBluePriceFrom $177Free CancellationRating
7.2
2,913 reviews
Search JetBlue flights
American AirlinesPriceFrom $232Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $241Free CancellationRating
7.4
8,899 reviews
Search United Airlines flights
SouthwestPriceFrom $250Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
Sun Country AirPriceFrom $305Free CancellationRating
6.9
333 reviews
Search Sun Country Air flights

  • Delta Flights From Boston to Phoenix Sky Harbor Intl Airport

    Across 6 Delta flights from Boston to Phoenix Sky Harbor Intl Airport this week, the average price was $327, with the best Delta deals starting from $172 round-trip. 7,979 users have rated Delta on momondo, with an average score of 8.0/10.

  • Southwest Flights From Boston to Phoenix Sky Harbor Intl Airport

    Southwest is also a popular choice for this route. Southwest flight deals for Boston to Phoenix Sky Harbor Intl Airport start from as low as $250 round-trip, depending on your selected dates, with average Southwest deals seen on momondo around $449. Southwest operates 1 flight to Phoenix Sky Harbor Intl Airport from Boston in an average week. Users have rated it 8.0/10 across 4,238 reviews.

Traveling to a place near Phoenix?

Book flights to Phoenix if you plan to visit one of these locations
Scottsdale
Mesa
Tempe
Glendale
Chandler
Gilbert
Surprise
Peoria
Casa Grande
Buckeye
Wickenburg
Apache Junction
Payson
Goodyear
Paradise Valley
Camp Verde
Avondale
Fountain Hills
Cave Creek
Litchfield Park

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Phoenix?

It is quick and easy to find Boston to Phoenix flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Phoenix that suits you.

Can I find flights from Boston to Phoenix with flexible booking policies on momondo?

momondo does allow users to show only those flights to Phoenix from Boston which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Boston to Phoenix?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Boston to Phoenix.

I’m not ready to book a flight from Boston to Phoenix right now. Can momondo alert me if prices change?

Price alerts on flights to Phoenix from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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