$99 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 2/20. 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
$188
Overall average: $367
Frontier
Sat 2/28Mon 3/2
BOS - PHX • 2 stops
Cheapest non-stop
$199
Typical prices: $264-$494
JetBlue
Sat 2/21Tue 2/24
BOS - PHX • Non-stop
Our travelers' advice
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
Video guide: How to find cheap flights to Phoenix
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Top airlines
Frontier
Cheapest • from $188 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BOS
-
PHX
Cheapest
BOS
-
PHX
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 29% compared to booking last minute.
Insights
Insights
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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, Feb 28 - Mon, Mar 2
Frontier Logo
12:35 pm - 11:59 pm
BOS
-
PHX
13h 24m
2 stops
Frontier Logo
6:00 am - 1:13 am
PHX
-
BOS
17h 13m
1 stop
$188Frontier
Fri, Feb 27 - Tue, Mar 3
Multiple Airlines Logo
5:10 pm - 9:10 pm
BOS
-
PHX
6h 00mnonstop
Multiple Airlines Logo
11:59 pm - 9:06 am
PHX
-
BOS
31h 07m
1 stop
$189Multiple Airlines
Thu, Feb 26 - Wed, Mar 4
Frontier Logo
6:00 am - 2:00 pm
BOS
-
PHX
10h 00m
1 stop
Frontier Logo
9:52 am - 1:13 am
PHX
-
BOS
13h 21m
2 stops
$190Frontier
Mon, Feb 23 - Mon, Mar 2
Delta Logo
5:15 pm - 9:20 pm
BOS
-
PHX
6h 05mnonstop
Delta Logo
11:59 pm - 9:14 am
PHX
-
BOS
7h 15m
1 stop
$192Delta
Thu, Feb 19 - Thu, Feb 26
Delta Logo
5:15 pm - 9:20 pm
BOS
-
PHX
6h 05mnonstop
Delta Logo
11:59 pm - 9:14 am
PHX
-
BOS
7h 15m
1 stop
$193Delta
Thu, Feb 26 - Mon, Mar 9
Delta Logo
5:15 pm - 9:20 pm
BOS
-
PHX
6h 05mnonstop
Delta Logo
10:30 pm - 11:28 am
PHX
-
BOS
9h 58m
1 stop
$197Delta
Thu, Feb 26 - Fri, Mar 6
Multiple Airlines Logo
6:00 am - 2:00 pm
BOS
-
PHX
10h 00m
1 stop
Multiple Airlines Logo
10:25 pm - 5:00 am
PHX
-
BOS
4h 35mnonstop
$198Multiple Airlines
Sat, Feb 21 - Wed, Feb 25
JetBlue Logo
5:10 pm - 9:09 pm
BOS
-
PHX
5h 59mnonstop
JetBlue Logo
10:25 pm - 5:00 am
PHX
-
BOS
4h 35mnonstop
$199JetBlue
Sun, Apr 19 - Fri, Apr 24
Sun Country Air Logo
6:45 am - 1:06 pm
BOS
-
AZA
9h 21m
1 stop
Sun Country Air Logo
5:10 pm - 10:12 am
AZA
-
BOS
14h 02m
1 stop
$393Sun Country Air
Sun, Apr 19 - Thu, Apr 23
Sun Country Air Logo
6:45 am - 1:06 pm
BOS
-
AZA
9h 21m
1 stop
Sun Country Air Logo
5:11 pm - 10:12 am
AZA
-
BOS
14h 01m
1 stop
$398Sun Country 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.

Find cheap flights to Phoenix
Find cheap flights to Phoenix

Planning a trip from Boston to Phoenix? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 $181 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 January, where tickets cost $282 (return) on average. On the other hand, the most expensive months are April and December, where the average cost of round-trip tickets is $426 and $392 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 3 weeks before departure, which saves you about 29% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 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$99
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 $99 for a one-way ticket and $188 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 4267 reviews
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
Airline reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

10.0 ExcellentAnonymous, Jan 2026
PHX - MDW
Read more Southwest reviews

All good except once again bags took an hour at Midway Airport Happens all the time. Ridiculous

Everything went smoothly and we even arrived a little bit early.

Great vacation. Can't wait till next year for another one.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

The seats were comfortable, and the boarding process was pretty smooth.

3 hour delay. Had to change plans and was still delayed.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

The crew canceled the complementary snack and drink in anticipation of turbulence that never materialized. I was counting on the drink (water) to take the the doses of medication - prescribed for my heart condition - that were due during the flight. Since no snack or meal was served on this flight, I cannot rate the food quality. Otherwise, this flight was excellent.

Departure was delayed more than 1/2 hour while we waited for luggage (only) transfer from another flight/plane. Once approved for takeoff, the flight was excellent.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

HORRIBLE, my initial flight was cancelled, they made me pay $200 extra dollars and that got cancelled as well! After 6 cancellations I decided to get a refund because I needed to get home to my babies. Out of $1000+ dollars they offered me only $40 in refund! Totally unacceptable! The flight that they cancelled I was able to fly it on another airline. I had to spend $400 on one way tickets just to get home! I’m still getting the runaround.

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

Trip delayed for 2 hours because of rain. We boarded and have to get down the flight and reboard again.

Enough space,crew was helpful,food was good.The gates are way far especially for travelers with health issues

I love American. I’ll never fly anyone else if I can help it.

The flight was on time and arrived early. The crew were friendly and helpful.

Overall experience was great. Flights were almost on time in departing and we arrived at our destination as scheduled. No issues with amenities or flight crew. Everything went well as as expected. Will fly again with American Airlines in the future!

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

I bought wifi and most of the flight could not even use it my apps would just spin. I couldn't even listen to music. super frustrating.

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

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

Information on your arrival and departure airports