How does KAYAK find such low prices on flights from Portsmouth to Boston?

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 Portsmouth to Boston. Visit our flight page for the latest deals!>/a>

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portsmouth to Boston?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Portsmouth is likely to change within 7 days, so travelers know whether to wait or book now. Visit our flight page for the latest deals!>/a>

What is the Hacker Fare option on flights from Portsmouth to Boston?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boston with an airline and back to Portsmouth with another airline. Visit our flight page for the latest deals!>/a>

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth to Boston?

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 Boston from Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best. Visit our flight page for the latest deals!>/a>

£460 CHEAP FLIGHTS from Portsmouth to Boston

BOS

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

...and more

Travellers love KAYAK

41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals

Cheap Flight Deals from Portsmouth to Boston

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Portsmouth to Boston 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.

Round-trip

One-way

Recent return flight deals from Portsmouth to Boston

KAYAK's recommended return flight deals from the most popular airlines that fly from Portsmouth to Boston.

Discover the best prices for you by selecting your travel dates on KAYAK.

09:20 - 16:25SOU-BOS

12h 05m1 stop

18:35 - 08:45BOS-SOU

9h 10m1 stop

£476Delta

Find Deal

Wed, 14 May - Tue, 27 May

17:35 - 07:20SOU-BOS

18h 45m2 stops

18:35 - 08:50BOS-SOU

9h 15m1 stop

£480Delta

Find Deal

Wed, 14 May - Mon, 26 May

09:20 - 16:20SOU-BOS

12h 00m1 stop

23:35 - 17:50BOS-SOU

13h 15m2 stops

£485KLM

Find Deal

Sat, 7 Jun - Sat, 14 Jun

09:20 - 19:06SOU-BOS

14h 46m2 stops

23:35 - 17:50BOS-SOU

13h 15m2 stops

£491KLM

Find Deal

Sat, 7 Jun - Sat, 14 Jun

17:35 - 16:20SOU-BOS

27h 45m1 stop

18:35 - 08:45BOS-SOU

9h 10m1 stop

£576Virgin Atlantic

Find Deal

Fri, 13 Jun - Fri, 20 Jun

17:35 - 10:59SOU-BOS

22h 24m2 stops

13:10 - 08:45BOS-SOU

14h 35m2 stops

£585Virgin Atlantic

Find Deal

Fri, 13 Jun - Fri, 20 Jun

09:40 - 18:45SOU-BOS

14h 05m1 stop

17:30 - 08:40BOS-SOU

10h 10m1 stop

£735Aer Lingus

Find Deal

Sat, 30 Aug - Fri, 12 Sep

09:40 - 14:40SOU-BOS

10h 00m1 stop

17:30 - 08:35BOS-SOU

10h 05m1 stop

£764Aer Lingus

Find Deal

Sat, 16 Aug - Sat, 30 Aug

16:00 - 14:40SOU-BOS

51h 40m2 stops

17:30 - 08:35BOS-SOU

10h 05m1 stop

£775

Find Deal

Sat, 16 Aug - Sat, 30 Aug

09:40 - 22:00SOU-BOS

17h 20m2 stops

20:50 - 19:30BOS-SOU

17h 40m2 stops

£779

Find Deal

Sat, 16 Aug - Sat, 30 Aug

Useful Info

Low season	January
High season	July
Cheapest flight	£460

Best time to beat the crowds (16% less expensive on average)

Most popular time to fly (32% more expensive on average)

Flight from Southampton to Boston

When to book flights from Portsmouth to Boston

Are your dates flexible? Find out the best times to travel from Portsmouth to Boston based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated return price

How does KAYAK find such low prices on flights from Portsmouth to Boston?
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 Portsmouth to Boston.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portsmouth to Boston?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Portsmouth 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 Portsmouth to Boston?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Boston with an airline and back to Portsmouth with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth to Boston?
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 Boston from Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

Airports

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Information on your arrival and departure airports

Boston (BOS)

BOS

£460 Find Cheap Flights from Portsmouth to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portsmouth to Boston departing on 13/7. 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.

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

Cheap Flight Deals from Portsmouth to Boston

Recent return flight deals from Portsmouth to Boston

Recent one-way flight deals from Portsmouth to Boston

Good to know - Cheap tickets from Portsmouth to Boston

Low season

High season

Cheapest flight

When to book flights from Portsmouth to Boston

FAQs for booking flights from Portsmouth to Boston

How does KAYAK find such low prices on flights from Portsmouth to Boston?

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portsmouth to Boston?

What is the Hacker Fare option on flights from Portsmouth to Boston?

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth to Boston?

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

Information on your arrival and departure airports

Cabin class types available on flights to Portsmouth

Cabin classes available on flights to Portsmouth. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Complete your trip to Boston with a hotel stay or car hire

Find direct flights for Boston

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to Portsmouth

Flights from all regions of Portsmouth to Boston. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Choose which airport to fly into in Portsmouth