$133 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 7/15. 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
$288
Typical prices: $462-$325
Frontier
Fri 7/3Sat 7/4
BOS - PHX • 1 stop
Cheapest non-stop
$312
Typical prices: $504-$294
Delta
Wed 9/9Sun 9/13
BOS - PHX • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
JetBlue adds free Wi-Fi and live TV; Delta offers free Wi-Fi for SkyMiles.
For more room, JetBlue Even More Space beats Delta Comfort Plus on legroom.
Expert advice
Expert advice
Expert advice
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Top airlines
Cheapest • from $288 (round-trip)
Best reviews • 7.9 score
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+1
Nonstop flights
You can fly direct with American Airlines and Delta. Average duration is 5h 41m
Direct flights
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
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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 3 weeks in advance save around 28% 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

Fri, Jul 3 - Sat, Jul 4
Frontier Logo
12:01 pm - 10:20 pm
BOS
-
PHX
13h 19m
1 stop
Frontier Logo
12:12 am - 9:09 am
PHX
-
BOS
29h 57m
1 stop
$288Frontier
Wed, Aug 12 - Sun, Aug 23
JetBlue Logo
4:30 pm - 9:43 pm
BOS
-
PHX
8h 13m
1 stop
JetBlue Logo
11:06 pm - 11:21 am
PHX
-
BOS
9h 15m
1 stop
$291JetBlue
Wed, Jul 29 - Wed, Aug 5
Multiple Airlines Logo
10:04 am - 10:30 am
BOS
-
PHX
27h 26m
1 stop
Multiple Airlines Logo
11:06 pm - 11:16 am
PHX
-
BOS
9h 10m
1 stop
$294Multiple Airlines
Wed, Jul 1 - Tue, Jul 7
Multiple Airlines Logo
12:01 pm - 10:20 pm
BOS
-
PHX
13h 19m
1 stop
Multiple Airlines Logo
11:06 pm - 11:33 am
PHX
-
BOS
9h 27m
1 stop
$295Multiple Airlines
Wed, Aug 5 - Wed, Aug 12
Multiple Airlines Logo
11:59 am - 7:44 pm
BOS
-
PHX
10h 45m
1 stop
Multiple Airlines Logo
11:06 pm - 11:16 am
PHX
-
BOS
9h 10m
1 stop
$296Multiple Airlines
Wed, Sep 16 - Wed, Sep 23
Delta Logo
5:50 pm - 8:22 pm
BOS
-
PHX
5h 32mnonstop
Delta Logo
11:05 pm - 9:03 am
PHX
-
BOS
6h 58m
1 stop
$297Delta
Fri, Jul 3 - Mon, Jul 6
Multiple Airlines Logo
12:01 pm - 10:20 pm
BOS
-
PHX
13h 19m
1 stop
Multiple Airlines Logo
11:06 pm - 11:33 am
PHX
-
BOS
9h 27m
1 stop
$300Multiple Airlines
Tue, Oct 6 - Wed, Oct 7
Southwest Logo
5:05 am - 11:05 am
BOS
-
PHX
9h 00m
2 stops
Southwest Logo
10:30 pm - 8:00 am
PHX
-
BOS
6h 30m
1 stop
$302Southwest
Fri, Jul 3 - Sat, Jul 11
Allegiant Air Logo
10:35 am - 10:35 pm
BOS
-
AZA
15h 00m
1 stop
Allegiant Air Logo
7:05 am - 10:53 pm
AZA
-
BOS
12h 48m
1 stop
$346Allegiant Air
Mon, Aug 24 - Sat, Aug 29
Allegiant Air Logo
11:53 am - 4:39 pm
BOS
-
AZA
7h 46m
1 stop
Allegiant Air Logo
1:39 pm - 10:04 am
AZA
-
BOS
17h 25m
1 stop
$403Allegiant 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 July.

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 $313 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, Tuesday is the cheapest day to fly and Monday 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 $165 (return) on average. On the other hand, the most expensive months are September and April, where the average cost of round-trip tickets is $716 and $499 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 28% 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$133
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 5 days, the lowest price for a flight from Boston to Phoenix was $133 for a one-way ticket and $288 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

American Airlines,Delta

Tuesday

American Airlines,Delta

American Airlines,Delta

Wednesday

American Airlines,Delta

American Airlines,Delta

Thursday

American Airlines,Delta

American Airlines,Delta

Friday

American Airlines,Delta

American Airlines,Delta

Saturday

American Airlines,Delta

American Airlines,Delta

Sunday

American Airlines,Delta

American Airlines,Delta

See more direct flights

Direct returns

Phoenix to Boston Logan Intl

Monday

American Airlines,Delta

American Airlines,Delta

Tuesday

American Airlines,Delta

American Airlines,Delta

Wednesday

American Airlines,Delta

American Airlines,Delta

Thursday

American Airlines,Delta

American Airlines,Delta

Friday

American Airlines,Delta

American Airlines,Delta

Saturday

American Airlines,Delta

American Airlines,Delta

Sunday

American Airlines,Delta

American Airlines,Delta

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.
7.9
SouthwestOverall score based on 4237 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.6Crew
8.0Comfort
Airline reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

2.0 MediocreMatthew, Jun 2026
CVG - MDW
Read more Southwest reviews

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

It was great. The gate staff were very helpful in Portland when my son forgot his rolling bag and had to go back to get it just in time to make it on the plane. We really appreciate that. Great job!

Airline is not very senior friendly. Flights are late, forcing us to run to the connecting flight. Food is awful. Wish they would go back to pretzels and peanuts. During flight, pressurization isn’t quite right and all of our ears get plugged. Everything is nickel and dime, charging for boarding, seat selection and legroom. While a screen at the desk in the gate area says check your roll on bag now for free due to space limitation, the employee at the desk will not check the bag without a $100 fee. Insane.

Kayak could’ve posted the correct gate number. Almost missed my flight.

Slow boarding, limited food and drink portions. Bad delays and turbulence

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

Gate agent showed up 20 minutes before boarding and was not at all friendly. Had to take this flight due to the one on the day before being cancelled and any later options were already full with long standby lists. Despite having paid for Delta Comfort seats, Delta did not allow me (or anyone) to choose their seat. The agent assigned them for everyone just prior to boarding. Self seat selection was allowed on the original flight. Flight staff was great - very friendly.

Flight attendants were great. Cheerful, upbeat and friendly. Jet, in particular, was fantastic.

I have Precheck. Flew HPN to DEN and return this past weekend. Delta didn't attach my Precheck number to this trip. So it was waiting in general line especially in Denver. Unavailable.

Original flight was delayed, then cancelled and the gate staff did not expedite rebooking. Also, no instructions were given that a ticket number was needed before being called to facilitate rebooking. This could have been much more organized.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Five hour delays every hour, I wish it were all at once

Flight delayed four separate times. I’m now one hour hours late to landing.

worst flight ever from Delta, it got delayed and kept on delaying..

Should never have had to go to Detroit from Orlando back to Tennessee!

Got rerouted from a straight flight from Orlando to Atlanta to Knoxville to a flight from Orlando to Detroit to Knoxville! Seriously!! Flight delay out of Detroit! Long day for what should have been a pretty easy travel day!

Horrible! Several delays and then was cancelled! I spent over 24 hours in the airport and was unable to get a hotel or food voucher.

The entertainment is a bit limited, it would be better if they added some games to play besides the movies and tv shows. But the seats are comfortable and the crew is polite

This planes staff was top tier. Everything went great and had a great flight home.

Food was great. Staff was phenomenal. Seats were a bit hard and could use a lot more entertainment options as far as movies to choose from. WiFi was good. Overall great trip.

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

The pilot had to extend the flight time from san antonio to Houston to burn off fuel. This caused a lot of unnecessary stress since we had a tight connection to Aruba. And with no other flights going to Aruba we were worried about spending a night in Houston. We had to to run to our connection because of the flight crews mistake. Not happy.

Service was professional and quick. Premium economy seat was comfortable given the class

I'm a United 1K member and have ben for 10 years. The gate agent had no control over the boarding process and had us passengers queued for hours as delays were announced. On the plane, the overhead air nozzle was broken so col over was powering through on me and the passenger next to me. Not a great experience for a million miler on United. Feel free to contact me. Josh Smigel - DM426089

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

Seat bottom cushions are not good. I’m 165# & they hurt my butt. Plenty of legroom.

The airplane seats were spacious and comfortable, and the flight attendants were friendly and attentive. The food was delicious like never before. The blankets and toiletries were thoughtfully provided. The captain's navigation was steady and reliable. In short, having flown with Starlux, I won't consider any other airline next time.

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.

I tried to book a flight with Jet Blue. Your third party company hijacked my attempt with a website that looked like I was booking with Jet Blue. I realized it when I paid. I tried to cancel and was told by a man in India that there were no refunds. $735 stolen, Thanks Kayak!

It was inexplicably canceled and we are stuck in LA, haven't gotten home and it has been an inconvenience having lost work (on unpaid leave for my husband).

I like everything. Blythe at DCA is the absolute best!

JetBlue worker, Blythe, was so amazing at the DCA counter. If it wasn’t for her, I’m not sure we would’ve made it through. Please thank her!

They lost my luggage and refuse to help. Terrible airline. I've never experienced worse customer service in my life. Pretty much just told me too bad that I lost all my luggage, not caring that I am stuck in Europe for 2 weeks with absolutely nothing.

You should have had Wifi to make it much enjoyable.

The flight out was delayed from 3:40pm to 5pm and again to 8pm. We boarded after 5pm, had to disembark because they could not get the Engine started, then we switched gates and got a new plane and did not board until after 8pm.

The flight was delayed after already taxiing from the gate due to a malfunction. After 3 hours we were told the flight was canceled. The next flight available was Sunday. My daughter and I stayed overnight in the airport due to this issue. I was given a $12 meal voucher. Unacceptable

Whole experience was poor. Delayed 2 hours. Lied about the delays. Was all jet blues fault and tried to blame on air traffic control. Sent out other let trips and wouldn't allow people to switch aircraft.

My bag was not loaded on my flight. it was not communicated to me until i was waiting for my bag at my destination. there was no confirmation of when my bag was arriving and no way to track it.

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

Information on your arrival and departure airports