Cheapest airlines flights from Boston to Phoenix

You can choose from 1 airlines that fly from Boston to Phoenix, including American Airlines, Delta Air Lines has lowest fares on this route.
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Boston to Phoenix according to previous 12 months data from Trip.com.

Search for direct flights from Boston to Phoenix in the next 3 months. Based on Trip.com's latest 7-day flight data, one-way direct flights start at US$106, and round-trip direct flights start at US$215.

Displayed flight fares from Boston to Phoenix are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Boston to Phoenix Flight Details

The distance between Boston and Phoenix is about 3,696.01 km. The average flying time from Boston to Phoenix is around 6 hours. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$81
Cheapest return ticket priceUS$201
Cheapest monthOctober
Peak season for travelJuly
Flight distance3,696.01 km
Average flight time6 hours
Popular airlineAmerican Airlines
Flight statistics for the Boston–Phoenix route are based on aggregated booking data from Trip.com over the past 12 months.

Trip.com Price Insights on Flights from Boston to Phoenix

Which month has the cheapest one-way flights from Boston to Phoenix?

The average price of one-way flights from Boston to Phoenix purchased by Trip.com users by month over the past 12 months.

Based on Trip.com’s data, the cheapest month for flights from Boston to Phoenix is January, with an average price of US$158; while the month with the highest flight price is usually July, with an average price of up to US$312.

US$312
US$235
US$158
US$81
    Cheapest
  • US$182
    Mar
  • US$205
    Apr
  • US$196
    May
  • US$218
    Jun
  • US$312
    Jul
  • US$206
    Aug
  • US$254
    Sep
  • US$254
    Oct
  • US$280
    Nov
  • US$260
    Dec
  • US$158
    Jan
  • US$253
    Feb

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

Average weekly flight prices from Boston to Phoenix by travel date (Based on Trip.com’s past 12 months of data)

Based on Trip.com’s past 12 months of flight data, the cheapest day to fly from Boston to Phoenix is Wednesday, with average prices lower than on other days. Avoid Thursday, as prices are usually highest then.

US$291
US$243
US$195
US$147
    Cheapest
  • US$214
    Mon
  • US$240
    Tue
  • US$195
    Wed
  • US$291
    Thu
  • US$220
    Fri
  • US$217
    Sat
  • US$228
    Sun

What is the cheapest day to fly from Boston to Phoenix during Easter Day?

Based on Trip.com's data over the past 3 days, these are the lowest one-way flight prices from Boston to Phoenix during Easter Day.

During the Easter Day period, the cheapest flights from Boston to Phoenix were available on Apr 13 with the lowest price being US$125.

US$269
US$197
US$125
US$53
    Cheapest
  • US$269
    Apr 9
  • US$142
    Apr 10
  • US$144
    Apr 11
  • US$136
    Apr 12
  • US$125
    Apr 13
  • US$133
    Apr 14

Frequently Asked Questions

  • What are the cheapest flights from Boston to Phoenix (BOS-PHX)?

    Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$81 on Cheapest nonstop routes (e.g. BOS to PHX on Tue, Mar 17), while Alaska Airlines offers Cheapest nonstop round-trips from US$201 departing on Sat, May 2 and returning on Wed, May 6.
  • At the moment, you can catch a nonstop flight from Boston to Phoenix with the following airlines, including: American Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • It takes about 6 hours to fly from Boston to Phoenix.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Boston to Phoenix is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • Based on Trip.com data in the past 4 weeks, there is 40 flight per week flying from Boston to Phoenix. You can check the weekly schedule for popular airlines on this route below: American Airlines: S/M/T/W/T/F/S -- AA2260 (06:37) American Airlines: S/M/T/W/T/-/S -- AA2575 (10:04)
  • To find best deals on flights from Boston to Phoenix, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Tue, Mar 17, with one-way flights priced at just US$81.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Phoenix travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Boston to Phoenix is October, when demand for travel is lower.
  • After crunching the numbers on our March flight calendar, it's currently cheapest to fly from Boston to Phoenix on March 17, 2026 with Frontier Airlines, with prices starting at US$81.
  • You can land at any one of the following hubs in Phoenix, with Logan International Airport to Phoenix Sky Harbor International Airport (BOS-PHX) is by far the most common option on this route: Mesa Gateway Airport (AZA) Falcon Field Airport (MSC) Phoenix Sky Harbor International Airport (PHX) Scottsdale Airport (SCF).
  • The time difference between Phoenix and Boston is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Trip.com Airline Insights on Flights from Boston to Phoenix

Which airline offers the cheapest direct flights from Boston to Phoenix?

Data is based on the average price of all nonstop flights from Boston to Phoenix on Trip.com over the past 12 months.

Based on Trip.com’s data from the past 12 months, Alaska Airlines provides the lowest-priced direct flights from Boston to Phoenix, with fares starting at US$125.

US$72
US$125
US$178
US$231
US$284
Alaska Airlines
US$125
Alaska Airlines
Spirit Airlines
US$127
Spirit Airlines
United Airlines
US$200
United Airlines
Delta Air Lines
US$247
Delta Air Lines
Jetblue Airways
US$257
Jetblue Airways
American Airlines
US$284
American Airlines

Which airline operates the most flights from Boston to Phoenix?

Total flights from Boston to Phoenix across all airlines. (Based on Trip.com data from the past month)

Based on Trip.com’s data from the past month, American Airlines operates the most frequent flights from Boston to Phoenix, with 25 flights per week.

0
7
16
25
American Airlines
25
American Airlines
Delta Air Lines
11
Delta Air Lines
British Airways
7
British Airways
Aer Lingus
7
Aer Lingus
Jetblue Airways
7
Jetblue Airways
Etihad Airways
7
Etihad Airways

How many flights fly from Boston to Phoenix daily?

The data is based on the flight numbers for each day of the week from Boston to Phoenix within the Trip.com database over the past month.

Based on the past month's historical data from Trip.com, the number of flights from Boston to Phoenix is the highest on Friday and the lowest on Tuesday.

75
55
35
15
Highest
51
Mon
35
Tue
53
Wed
62
Thu
75
Fri
53
Sat
65
Sun

Note: Prices shown on this page are the estimated lowest prices found in the last 24 hours and include all taxes and fees.

Book with no extra fees

Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before you pay. Charges for checked baggage, onboard meals, Wi‑Fi, and other optional services are also included where applicable in the flight cards.

Real-time pricing updates

Prices, availability, and travel details on this page have been updated within the last 24 hours, and for many routes are refreshed in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.