$129 Find Cheap Flights from Boston to Phoenix

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Phoenix departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Phoenix

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Phoenix.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Phoenix.
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Everything you should know

Cheapest round-trip
$264
Typical prices: $454-$285
Frontier, JetBlue
Sat 5/9Sat 5/16
BOS - PHX • 1 stop
Cheapest non-stop
$267
Typical prices: $460-$284
Delta
Tue 5/12Tue 5/19
BOS - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue offers free Wi-Fi and live TV for all passengers.
Use the Sky Train for easy access to downtown Phoenix.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $266 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with American Airlines, Delta and JetBlue. Average duration is 5h 46m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
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Avoid delays
Most punctual • 85% on-time
Best time • Fewest delays
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 29% compared to booking last minute.
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Flight Deals

Cheap Flights from Boston to Phoenix (BOS-PHX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Phoenix that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Phoenix

Sat, May 9 - Sat, May 16
Multiple Airlines Logo
12:01 pm - 10:26 pm
BOS
-
PHX
13h 25m
1 stop
Multiple Airlines Logo
10:28 pm - 6:22 am
PHX
-
BOS
4h 54mnonstop
$264Multiple Airlines
Sat, May 9 - Sat, May 30
Multiple Airlines Logo
12:01 pm - 10:26 pm
BOS
-
PHX
13h 25m
1 stop
Multiple Airlines Logo
12:00 pm - 5:44 am
PHX
-
BOS
14h 44m
1 stop
$265Multiple Airlines
Tue, May 12 - Wed, May 27
Frontier Logo
9:31 am - 10:26 pm
BOS
-
PHX
15h 55m
1 stop
Frontier Logo
11:30 pm - 7:49 am
PHX
-
BOS
29h 19m
1 stop
$266Frontier
Tue, May 26 - Tue, Jun 2
United Airlines Logo
6:40 pm - 11:37 pm
BOS
-
PHX
7h 57m
1 stop
United Airlines Logo
11:50 pm - 9:39 am
PHX
-
BOS
6h 49m
1 stop
$267United Airlines
Fri, May 29 - Tue, Jun 2
Multiple Airlines Logo
6:00 am - 8:33 pm
BOS
-
PHX
17h 33m
1 stop
Multiple Airlines Logo
6:00 am - 11:54 pm
PHX
-
BOS
14h 54m
2 stops
$269Multiple Airlines
Wed, May 13 - Sat, May 16
Multiple Airlines Logo
12:01 pm - 8:33 pm
BOS
-
PHX
11h 32m
1 stop
Multiple Airlines Logo
10:28 pm - 6:22 am
PHX
-
BOS
4h 54mnonstop
$271Multiple Airlines
Sat, May 23 - Fri, May 29
Southwest Logo
3:30 pm - 7:50 pm
BOS
-
PHX
7h 20m
1 stop
Southwest Logo
11:55 pm - 1:35 pm
PHX
-
BOS
10h 40m
2 stops
$272Southwest
Sat, May 9 - Sat, May 16
Multiple Airlines Logo
12:01 pm - 10:26 pm
BOS
-
PHX
13h 25m
1 stop
Multiple Airlines Logo
10:28 pm - 6:22 am
PHX
-
BOS
4h 54mnonstop
$274Multiple Airlines
Thu, Jun 25 - Sat, Jul 11
Allegiant Air Logo
12:07 pm - 7:57 am
BOS
-
AZA
22h 50m
1 stop
Allegiant Air Logo
4:04 pm - 8:28 am
AZA
-
BOS
13h 24m
1 stop
$366Allegiant Air
Sun, Jul 19 - Sat, Jul 25
Allegiant Air Logo
12:06 pm - 9:25 am
BOS
-
AZA
24h 19m
1 stop
Allegiant Air Logo
6:00 am - 8:28 am
AZA
-
BOS
23h 28m
1 stop
$434Allegiant Air
Booking Insights

KAYAK's insights & trends for Boston to Phoenix flights

Get data-powered insights and trends into flights from Boston to Phoenix to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boston to Phoenix?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Phoenix departing in May.

What is the cheapest Boston to Phoenix flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Boston to Phoenix costs $270 on the route between Boston (BOS) and Phoenix Sky Harbor Intl Airport (PHX). It is also the most popular route.

What’s the cheapest day of the week to fly from Boston to Phoenix?

The average price of all round-trip flights from Boston to Phoenix clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to Phoenix, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Phoenix, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Phoenix, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Phoenix is August, where tickets cost $125 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $926 and $745 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Phoenix, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Phoenix, you should book around 4 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Boston to Phoenix

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on American Airlines and JetBlue

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.

Stefanie Waldek

Stefanie Waldek

Expert on Delta

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Laura Ratliff

Laura Ratliff

Expert on PHX

Laura Ratliff is a New York-based writer and editor. She lives in downtown Brooklyn with her husband and their beloved dogs. Originally from Texas, she now considers New York City her home. She typically spends more than 200,000 miles on a plane each year and stays in plenty of hotels.

Blane Bachelor

Blane Bachelor

Expert on BOS

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.

Good to know

Cheapest flight$129
Flight from Boston to Phoenix Sky Harbor Airport

When to book flights from Boston to Phoenix

Are your dates flexible? Find out the best times to travel from Boston to Phoenix based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Phoenix

  • What is the cheapest flight from Boston to Phoenix?

    In the last 3 days, the lowest price for a flight from Boston to Phoenix was $129 for a one-way ticket and $264 for a round-trip.

  • Do I need a passport to fly between Boston and Phoenix?

    Yes, you’ll need a passport to travel to Phoenix from Boston.

  • Which airports will I be using when flying from Boston to Phoenix?

    Boston is served by only 1 airport and there are 2 airports in Phoenix. You will leave Boston from Boston Logan Intl and you will be arriving in Phoenix at one of these airports: Phoenix-Mesa Gateway or Phoenix Sky Harbor Intl.

  • Which aircraft models fly most regularly from Boston to Phoenix?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Phoenix?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Boston and Phoenix, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Boston to Phoenix?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Phoenix.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Phoenix?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Phoenix from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Phoenix?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Phoenix with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Phoenix?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Phoenix from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Boston to Phoenix?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to Phoenix.
Find which airlines fly direct from Boston Logan Intl Airport to Phoenix, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Phoenix

Monday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Tuesday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Wednesday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Thursday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Friday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Saturday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Sunday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

See more direct flights

Direct returns

Phoenix to Boston Logan Intl

Monday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Tuesday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Wednesday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Thursday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Friday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Saturday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

Sunday

American Airlines,Delta,JetBlue

American Airlines,Delta, +1 more

See more direct flights

Reviews of the top 5 airlines serving from Boston to Phoenix

 
See real verified KAYAK customer reviews for airlines flying from Boston to Phoenix. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Phoenix? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4314 reviews
8.0Comfort
7.0Food
8.1Boarding
7.5Entertainment
8.6Crew
Airline reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

10.0 Excellentlarry, Apr 2026
LGB - PHX
Read more Southwest reviews

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Purchased through 3rd party vendor which made everything difficult. Unable to check in online. Unable to get flight updates easily, tsa precheck information didn’t carry through, longer time to check in in person. Entertainment looked good but had to purchase conventional headphones to view.

Boarding was fast, easy, and we landed early. The entertainment system was very buggy and kept resetting throughout the flight.

Not having an assigned seat until boarding and then having to check my bag.

Flight emergency landed in Chicago due to “Odor” in back of plane . Had to buy ANOTHER TICKET to get to Boston cash out of my own pocket . Then they would notchange my return flight time without a 400. Charge!!!! Insulting.

I purchased ticket so our daughter ( a minor) can sit next to her mother. No help at gate after kayak insisted that this could be done. She ended sitting by herself

Flight was as expected. But it was delayed an hour. Also, my luggage got damaged. So that sucked especially since the damage made navigating the airport difficult. Walking to get ground transportation is sooo far away now and my checked bag was difficult to carry.

we were an hour delayed after boarding and given no reason. Headsets cost money. Also there were openrows with no one setting in them but we were told we were not allowed to swtich.

Crew was very friendly. Did not like being jammed in the back middle seat. Don’t understand why I can not select an aisle for free based on first come first serve. Also first time I’ve been on a flight which attempted land then circled Detroit airport multiple times.

Terrible. There was a lot of misleading information regarding ticketing, seat upgrades, & boarding group. I also expect my seat will recline. I have back problems & it is very painful for me of the seat doesn’t recline. In addition, when I choose a fare that allows me a carry-on bag, I expect to be able to carry it on. Not be forced to check it. Thos happened on my flight to MCO & back to Boston. Not sure I will ever fly JetBlue again. Further I bought the ticket through hat deal. I will NEVER do that again. They were incapable of providing an accurate record locator # for either leg of the trip. I had to call them before each flight with me VERY stressed about whether I would actually be able to get on my flight. Who does that? Who books flight & then FAILS to give an accurate record locator? Twice!

The flight was delayed 4 hours and the JetBlue people at the counter kept lying to us and telling us it was due to weather however all other flights were going in and out of NY and FL. Then they lied that the plane had to stop to refuel. Then they lied and said the plane needed a tire change. JetBlue is the worst. Then they gave a lot of people meal vouchers however I didn’t know they did that and they didn’t offer anything to me.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Original flight was on time, then late, then changed gates...4 times. Once our newest plane came in, it was fine.

The seats need better cushioning for a nearly 5-hour flight, it was a bit uncomfortable. I'm glad American has free wi-fi but there were was a bout 30 minutes in the middle of the flight when there was no connection which was frustrating.

My original flight got delayed day of so I had to rebook it from one layover to two layovers. The flight also left earlier which was a slight inconvenience but manageable. Then my first connection flight got delayed 3 separate times for a total of 2 hours delayed, causing me to miss my second connection flight back to Santa Barbara. Now, because of this missed flight, I am missing my college classes that I pay for.

Early departure meant on time arrival. Only real problem was free internet had issues, although chatting with the internet help desk (you can do this via aainflight.com) got the issue resolved.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

On time flight, good communication about boarding, lines didn't form unnecessarily for boarding before their group was announced (kept aisles clear), friendly flight attendants and service

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

Everything you need to know for your flight from Boston to Phoenix

Information on your arrival and departure airports