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Cheap flights from Boston to Phoenix Sky Harbor Intl Airport from £104

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PHX
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Boston to Sky Harbor Intl

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Sky Harbor Intl (PHX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.

Round-trip from

£180

One-way from

£104

Popular in

April

Cheapest in

January

Average price

£231
Southwest
  • Southwest
  • 6/8-12/8
  • 3 total stops
  • 20h 55m total
  • Boston to Phoenix
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Delta
  • Delta
  • 8/9
  • Nonstop
  • 5h 35m total
  • Boston to Phoenix
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£24 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in July 2025
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Find flight deals from Boston to Sky Harbor Intl

Cheapest flights from Boston to Sky Harbor Intl
Explore the most affordable flight options available from Boston to Sky Harbor Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.

Wed 6/805:20BOS - PHX
1 stop10h 10mSouthwest
Wed 13/808:45PHX - BOS
2 stops10h 45mSouthwest
Deal found 9/7£180
Wed 20/818:50BOS - PHX
Nonstop5h 35mDelta
Sun 24/822:35PHX - BOS
Nonstop5h 05mDelta
Deal found 10/7£181
Wed 3/907:20BOS - PHX
1 stop10h 38mHawaiian Airlines
Wed 10/910:50PHX - BOS
1 stop10h 37mHawaiian Airlines
Deal found 9/7£184
Tue 26/807:20BOS - PHX
1 stop10h 38mAlaska Airlines
Sat 30/811:28PHX - BOS
1 stop27h 12mAlaska Airlines
Deal found 10/7£191
Thu 7/810:08BOS - PHX
2 stops15h 26mSpirit Airlines
Thu 7/823:49PHX - BOS
1 stop8h 42mSpirit Airlines
Deal found 11/7£208
Mon 3/1117:00BOS - PHX
Nonstop6h 04mJetBlue
Tue 11/1122:20PHX - BOS
Nonstop4h 47mJetBlue
Deal found 10/7£211

Cheapflights Fare Finder

Customise your flight search to find flights from Boston to Sky Harbor Intl 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, Cheapflights users made 858,174 searches. Data last updated 11 July 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

Boston

Fly to

Sky Harbor Intl

Route

Depart

Return

Price

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 6/8

05:20-12:30

1 stop10h 10m

Phoenix Sky Harbor Intl

Tue 12/8

08:45-22:30

2 stops10h 45m

£180

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 20/8

18:50-21:25

Nonstop5h 35m

Phoenix Sky Harbor Intl

Sun 24/8

22:35-06:40

Nonstop5h 05m

£181

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 3/9

07:20-14:58

1 stop10h 38m

Phoenix Sky Harbor Intl

Wed 10/9

10:50-00:27

1 stop10h 37m

£184

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 26/8

07:20-14:58

1 stop10h 38m

Phoenix Sky Harbor Intl

Sat 30/8

11:28-17:40

1 stop27h 12m

£191

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 7/8

10:08-22:34

2 stops15h 26m

Phoenix Sky Harbor Intl

Thu 7/8

23:49-11:31

1 stop8h 42m

£208

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Mon 3/11

17:00-21:04

Nonstop6h 04m

Phoenix Sky Harbor Intl

Wed 12/11

22:20-05:07

Nonstop4h 47m

£211

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Mon 8/9

18:50-21:25

Nonstop5h 35m

£104

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 13/8

09:25-18:05

2 stops11h 40m

£107

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Wed 13/8

06:00-13:16

1 stop10h 16m

£110

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sat 9/8

05:30-09:56

1 stop7h 26m

£130

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 12 results
1
2

Best time to book a flight from Boston to Sky Harbor Intl

Have a flexible travel schedule? Discover the best time to fly to Sky Harbor Intl from Boston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Phoenix Sky Harbor Intl Airport

How far ahead should I book a flight from Boston to Phoenix Sky Harbor Intl Airport?

Use this chart to determine the optimal time to book a return flight from Boston to Sky Harbor Intl. Price data was last updated on 27 June 2025.

The price you pay for your flight from Boston to Phoenix Sky Harbor Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Boston to Phoenix Sky Harbor Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Boston to Phoenix Sky Harbor Intl Airport (average of £729). Flying from Boston to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of £1,041). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to PHX?

Find hourly flight availability from Boston to Sky Harbor Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 July 2025.

When flying from Boston to Phoenix Sky Harbor Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 35% versus a flight in the afternoon.

Weekly flight availability from Boston to Phoenix Sky Harbor Intl Airport

Explore weekly flight availability from Boston to Sky Harbor Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 July 2025.

The most flights from BOS to PHX are scheduled on a Thursday (9 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (7 on average).

Reviews of airlines servicing Sky Harbor Intl

Get insights into the airlines that provide service to Sky Harbor Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sky Harbor Intl. Reviews last updated 11 July 2025.
Read reviews from past customers who have flown with Alaska Airlines, Southwest, andDelta from Boston to Phoenix Sky Harbor Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very Good
10,000 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very Good
4,250 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very Good
7,951 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,565 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,846 reviews
Alaska Airlines
8.0
Very Good
10,000 reviews
Check prices

Boarding

8.1

Food

7.1

Comfort

7.8

Crew

8.5

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Boston to Sky Harbor Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Phoenix Sky Harbor Intl?

    For a flight from Boston to Phoenix Sky Harbor Intl, you will be flying from Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city. Logan Intl is the only Boston airport and it handles 8 outbound flights to Phoenix Sky Harbor Intl per day. 0 airlines have flights to Phoenix Sky Harbor Intl from Boston Logan Intl on a regular basis.

  • What are the cheapest airlines flying from Boston to Phoenix Sky Harbor Intl Airport round-trip?

    Flying on Southwest is currently your cheapest option to Phoenix Sky Harbor Intl Airport, with prices starting at £180. Additional return tickets that might be worth considering are offered by Delta and Hawaiian Airlines, with the lowest prices starting at £181 and £184, respectively. Southwest is priced at 28% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to Phoenix Sky Harbor Intl Airport one-way?

    One-way options have recently been found by users for as low as £104 on Delta. Other airlines that offer cheap prices include Southwest from £107 and Alaska Airlines from £110 one-way.

  • What are the most reliable airlines from Boston to Phoenix Sky Harbor Intl Airport?

    The top 3 most reliable airlines when flying from Boston to Phoenix Sky Harbor Intl Airport are Air Europa (100%), ITA Airways (100%) and Virgin Atlantic (100%).

  • Can I find deals for flights from Boston to Sky Harbor Intl that include hotel bookings?

    Yes. In addition to deals on Boston to Sky Harbor Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Boston to Sky Harbor Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Sky Harbor Intl.

  • Can I find deals for business class flights from Boston to Sky Harbor Intl?

    Yes. Cheapflights offers flight deals from Boston to Sky Harbor Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Phoenix Sky Harbor Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Boston to Phoenix Sky Harbor Intl Airport (average of £729). Flying from Boston to Phoenix Sky Harbor Intl Airport in July is currently the most expensive (average of £1,041). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Can Cheapflights notify me if prices for flights from Boston to Sky Harbor Intl become cheaper?

Yes, Cheapflights offers price alerts on Boston to Sky Harbor Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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