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Cheap flights from Boston to Phoenix Sky Harbor Intl Airport from £99

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — PHX
7 Dec — 14 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Boston to Sky Harbor Intl

Enter your travel dates to find the best prices.

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 7 November 2025.

Thu 4/1218:46BOS - PHX
1 stop8h 00mDelta
Wed 10/1214:18PHX - BOS
1 stop7h 23mDelta
Deal found 5/11£166
Mon 15/1208:10BOS - PHX
Nonstop5h 46mDelta
Wed 24/1213:50PHX - BOS
Nonstop4h 57mDelta
Deal found 7/11£166
Tue 16/1208:10BOS - PHX
Nonstop5h 46mDelta
Tue 6/113:45PHX - BOS
Nonstop4h 47mDelta
Deal found 6/11£167
Sat 6/1207:25BOS - PHX
2 stops11h 55mSouthwest
Wed 10/1208:25PHX - BOS
1 stop6h 55mSouthwest
Deal found 6/11£168
Sat 6/1208:30BOS - PHX
1 stop9h 11mJetBlue
Fri 12/1222:20PHX - BOS
Nonstop4h 41mJetBlue
Deal found 5/11£169
Sun 7/1208:10BOS - PHX
Nonstop5h 46mDelta
Mon 8/1200:59PHX - BOS
1 stop8h 01mDelta
Deal found 5/11£170
Thu 4/1218:46BOS - PHX
1 stop8h 00mDelta
Thu 25/1206:00PHX - BOS
1 stop6h 52mDelta
Deal found 5/11£170
Tue 2/1214:10BOS - PHX
1 stop10h 20mSouthwest
Wed 3/1208:25PHX - BOS
1 stop6h 55mSouthwest
Deal found 6/11£172
Mon 8/1217:00BOS - PHX
Nonstop6h 01mJetBlue
Tue 16/1222:20PHX - BOS
Nonstop4h 41mJetBlue
Deal found 4/11£173
Sun 7/1217:00BOS - PHX
Nonstop6h 01mJetBlue
Fri 26/1222:28PHX - BOS
Nonstop4h 38mJetBlue
Deal found 5/11£174
Wed 31/1209:30BOS - PHX
1 stop8h 50mDelta
Wed 7/113:45PHX - BOS
Nonstop4h 47mDelta
Deal found 5/11£175
Fri 12/1213:45BOS - PHX
2 stops9h 05mSouthwest
Mon 15/1214:15PHX - BOS
1 stop6h 30mSouthwest
Deal found 5/11£176

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 7 November 2025.

Round-trip from

£166

One-way from

£99

Popular in

April

Cheapest in

January

Average price

£254
Delta
  • Delta
  • 10/1-14/1
  • 2 total stops
  • 15h 41m total
  • Boston to Phoenix
Search Deals
Southwest
  • Southwest
  • 9/12
  • 2 total stops
  • 9h 25m total
  • Boston to Phoenix
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 7 November 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

Mon 8/12

18:24-00:04

1 stop7h 40m

Phoenix Sky Harbor Intl

Wed 10/12

00:59-11:00

1 stop8h 01m

£166

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 3/2

16:20-00:44

1 stop10h 24m

Phoenix Sky Harbor Intl

Tue 10/2

23:53-10:02

1 stop8h 09m

£166

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 22/1

18:25-00:13

1 stop7h 48m

Phoenix Sky Harbor Intl

Tue 3/2

13:45-20:32

Nonstop4h 47m

£170

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sun 7/12

17:00-21:01

Nonstop6h 01m

Phoenix Sky Harbor Intl

Tue 16/12

22:20-05:01

Nonstop4h 41m

£173

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Mon 8/12

17:00-21:01

Nonstop6h 01m

Phoenix Sky Harbor Intl

Tue 16/12

22:20-05:01

Nonstop4h 41m

£173

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sun 18/1

05:29-11:14

1 stop7h 45m

Phoenix Sky Harbor Intl

Thu 29/1

13:45-20:32

Nonstop4h 47m

£181

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Sun 18/1

08:20-12:35

Nonstop6h 15m

Phoenix Sky Harbor Intl

Mon 2/2

16:07-01:04

1 stop6h 57m

£181

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Tue 3/2

07:00-16:12

1 stop11h 12m

Phoenix Sky Harbor Intl

Sat 7/2

11:00-23:54

1 stop10h 54m

£188

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 8/1

14:20-20:37

1 stop8h 17m

Phoenix Sky Harbor Intl

Mon 12/1

06:30-15:15

1 stop6h 45m

£189

BostonPhoenix

BOS - PHX

BOSPHX

Boston Logan Intl

Thu 4/12

18:46-00:46

1 stop8h 00m

Phoenix Sky Harbor Intl

Sat 6/12

07:00-16:03

1 stop7h 03m

£189

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 24 results
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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 31 October 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 33 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 £75). Flying from Boston to Phoenix Sky Harbor Intl Airport in May is currently the most expensive (average of £176). 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 7 November 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 evening, which can drop the price by up to 64% versus a flight at midday.

How much does it cost for a return flight from Boston to Phoenix Sky Harbor Intl Airport?

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 9 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.

  • How long is the flight from Boston to Phoenix Sky Harbor Intl Airport?

    There are many flights that can get you from Boston to Phoenix Sky Harbor Intl Airport in 7h 40m. Fly via Delta, Southwest, or United Airlines to get the fastest option. Airlines will cover a distance of 2293 mi. This flight may include one or multiple stops.

  • 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 Alaska Airlines (100%), American Airlines (75%) and KLM (68%).

  • 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 £75). Flying from Boston to Phoenix Sky Harbor Intl Airport in May is currently the most expensive (average of £176). 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

Travelling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
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Why should you use Cheapflights to find cheap flight tickets from Boston to Sky Harbor Intl?

Cheapflights helps you find that perfect flight to Sky Harbor Intl from Boston by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Boston to Sky Harbor Intl with no change fees?

Need flexible booking options for your flight to Sky Harbor Intl from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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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