$501+ Cheap flights from Boston (BOS) to Portsmouth, England
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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — LHR
Sep 2 — Sep 91
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Portsmouth with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Portsmouth
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Cheapest flights from Boston to PortsmouthExplore the most affordable flight options available from Boston to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
Explore the most affordable flight options available from Boston to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:25 pm
BOS
- SOU
1 stop10h 15m
Aer Lingus
Mon 9/219:20 am
SOU
- BOS
2 stops35h 50m
Aer Lingus
Deal found 7/30![Aer Lingus logo]()
$775
This Mytrip deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:45 am
BOS
- SOU
2 stops32h 45m
Multiple Airlines
Sun 9/208:00 pm
SOU
- BOS
2 stops27h 07m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$837
This Kiwi.com deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:15 pm
BOS
- SOU
1 stop14h 35m
Aer Lingus
Sat 10/179:20 am
SOU
- BOS
1 stop10h 35m
Aer Lingus
Deal found 8/2![Aer Lingus logo]()
$858
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:25 pm
BOS
- SOU
1 stop10h 15m
Aer Lingus
Sun 9/205:20 pm
SOU
- BOS
2 stops27h 50m
Aer Lingus
Deal found 7/29![Aer Lingus logo]()
$859
This Mytrip deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:50 pm
BOS
- SOU
2 stops15h 00m
Multiple Airlines
Mon 9/219:05 am
SOU
- BOS
3 stops37h 37m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$865
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:25 pm
BOS
- SOU
1 stop10h 10m
Multiple Airlines
Mon 9/147:20 pm
SOU
- BOS
2 stops24h 25m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$981
Best flights from Boston to PortsmouthDiscover carefully curated flight deals from Boston to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
Discover carefully curated flight deals from Boston to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 3, 2026.
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/204:40 pm
BOS
- SOU
1 stop19h 10m
Delta
Tue 9/299:05 am
SOU
- BOS
1 stop12h 30m
Delta
Deal found 7/31![Delta logo]()
$1,116
This Cheapflightsfares deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:20 am
BOS
- SOU
2 stops15h 45m
Aer Lingus
Sun 10/189:20 am
SOU
- BOS
1 stop14h 30m
Aer Lingus
Deal found 7/31![Aer Lingus logo]()
$1,123
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:40 pm
BOS
- SOU
1 stop10h 55m
Delta
Fri 9/259:05 am
SOU
- BOS
1 stop12h 30m
Delta
Deal found 7/31![Delta logo]()
$1,122
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:40 pm
BOS
- SOU
1 stop10h 55m
Delta
Tue 9/295:20 pm
SOU
- BOS
1 stop24h 59m
Delta
Deal found 7/31![Delta logo]()
$1,122
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:05 pm
BOS
- SOU
1 stop17h 30m
Delta
Mon 8/315:20 pm
SOU
- BOS
1 stop24h 59m
Delta
Deal found 7/30![Delta logo]()
$1,168
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/184:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Mon 8/315:20 pm
SOU
- BOS
1 stop28h 15m
Delta
Deal found 7/30![Delta logo]()
$1,168
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:25 pm
BOS
- SOU
1 stop16h 10m
Delta
Tue 9/15:20 pm
SOU
- BOS
1 stop24h 59m
Delta
Deal found 7/30![Delta logo]()
$1,168
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:45 pm
BOS
- SOU
1 stop10h 50m
Delta
Sat 9/59:15 am
SOU
- BOS
1 stop33h 04m
Delta
Deal found 8/1![Delta logo]()
$1,180
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:25 pm
BOS
- SOU
1 stop15h 25m
Delta
Mon 9/149:05 am
SOU
- BOS
1 stop12h 30m
Delta
Deal found 7/29![Delta logo]()
$1,222
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Tue 8/116:05 pm
SOU
- BOS
2 stops30h 10m
Delta
Deal found 7/29![Delta logo]()
$1,236
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:25 pm
BOS
- SOU
1 stop31h 10m
Delta
Fri 9/45:20 pm
SOU
- BOS
1 stop24h 59m
Delta
Deal found 8/1![Delta logo]()
$1,240
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Sat 9/59:15 am
SOU
- BOS
1 stop12h 20m
Delta
Deal found 8/1![Delta logo]()
$1,288
Last-minute flights from Boston to PortsmouthDiscover last-minute flight deals from Boston to Portsmouth. Data last updated August 3, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Portsmouth. Data last updated August 3, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:25 pm
BOS
- SOU
1 stop31h 20m
Delta
Wed 8/126:05 pm
SOU
- BOS
1 stop24h 13m
Delta
Deal found 7/29![Delta logo]()
$1,176
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/51:34 pm
BOS
- SOU
2 stops23h 01m
Delta
Tue 8/116:05 pm
SOU
- BOS
2 stops30h 10m
Delta
Deal found 7/29![Delta logo]()
$1,191
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:25 pm
BOS
- SOU
1 stop16h 10m
Delta
Sat 8/299:15 am
SOU
- BOS
1 stop14h 15m
Delta
Deal found 7/30![Delta logo]()
$1,218
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:05 am
BOS
- SOU
2 stops18h 40m
Delta
Tue 8/116:05 pm
SOU
- BOS
1 stop27h 32m
Delta
Deal found 7/29![Delta logo]()
$1,231
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Tue 8/116:05 pm
SOU
- BOS
1 stop27h 32m
Delta
Deal found 7/29![Delta logo]()
$1,226
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Mon 8/315:20 pm
SOU
- BOS
1 stop28h 15m
Delta
Deal found 7/30![Delta logo]()
$1,168
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/284:45 pm
BOS
- SOU
1 stop11h 00m
Delta
Fri 9/49:05 am
SOU
- BOS
1 stop12h 30m
Delta
Deal found 8/1![Delta logo]()
$1,238
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/298:25 pm
BOS
- SOU
1 stop31h 10m
Delta
Fri 9/45:20 pm
SOU
- BOS
1 stop24h 59m
Delta
Deal found 8/1![Delta logo]()
$1,240
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/304:45 pm
BOS
- SOU
1 stop10h 50m
Delta
Sat 9/59:15 am
SOU
- BOS
1 stop33h 04m
Delta
Deal found 8/1![Delta logo]()
$1,180
One-way flights from Boston to PortsmouthSearch for one-way flight options from Boston to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
Search for one-way flight options from Boston to Portsmouth. Find affordable one-way fares based on user searches. Data last updated August 3, 2026.
This Delta deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:20 pm
BOS
- SOU
1 stop16h 40m
Delta
Deal found 8/1![Delta logo]()
$501
This KAYAK deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:15 pm
BOS
- SOU
1 stop17h 15m
Aer Lingus
Deal found 7/31![Aer Lingus logo]()
$504
This KAYAK deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:25 pm
BOS
- SOU
1 stop21h 05m
Aer Lingus
Deal found 7/31![Aer Lingus logo]()
$516
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/84:40 pm
BOS
- SOU
1 stop11h 05m
Delta
Deal found 7/29![Delta logo]()
$572
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:57 pm
BOS
- SOU
2 stops30h 48m
Delta
Deal found 7/31![Delta logo]()
$588
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:40 pm
BOS
- SOU
1 stop10h 55m
Delta
Deal found 7/29![Delta logo]()
$622
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:05 am
BOS
- SOU
2 stops29h 55m
Delta
Deal found 7/31![Delta logo]()
$639
This KAYAK deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:20 pm
BOS
- SOU
1 stop17h 10m
Aer Lingus
Deal found 7/29![Aer Lingus logo]()
$681
Find flight deals from Boston to Portsmouth
Keep the following information in mind while searching for Boston to Portsmouth flight deals. Data was last updated August 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $775 (Kiwi.com) |
One-way from | $501 (Delta) |
Popular in | June |
Cheapest in | October |
Average price | $645 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Portsmouth 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 2,558,603 searches. Data last updated August 3, 2026.
Use the filters below to find and compare flights from Boston to Portsmouth that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Sun 9/20
4:40 pm-4:50 pm
1 stop19h 10m
Southampton Eastleigh
Tue 9/29
9:05 am-4:35 pm
1 stop12h 30m
$1,116
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Wed 9/16
4:40 pm-8:35 am
1 stop10h 55m
Southampton Eastleigh
Fri 9/25
9:05 am-4:35 pm
1 stop12h 30m
$1,122
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Wed 9/16
4:40 pm-8:35 am
1 stop10h 55m
Southampton Eastleigh
Tue 9/29
5:20 pm-1:19 pm
1 stop24h 59m
$1,122
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Tue 10/6
11:20 am-8:05 am
2 stops15h 45m
Southampton Eastleigh
Sun 10/18
9:20 am-6:50 pm
1 stop14h 30m
$1,123
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Wed 8/19
7:05 pm-5:35 pm
1 stop17h 30m
Southampton Eastleigh
Mon 8/31
5:20 pm-1:19 pm
1 stop24h 59m
$1,168
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Tue 8/18
4:45 pm-8:45 am
1 stop11h 00m
Southampton Eastleigh
Mon 8/31
5:20 pm-4:35 pm
1 stop28h 15m
$1,168
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Mon 8/17
8:25 pm-5:35 pm
1 stop16h 10m
Southampton Eastleigh
Tue 9/1
5:20 pm-1:19 pm
1 stop24h 59m
$1,168
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Sun 8/30
4:45 pm-8:35 am
1 stop10h 50m
Southampton Eastleigh
Sat 9/5
9:15 am-1:19 pm
1 stop33h 04m
$1,180
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Sat 9/5
8:25 pm-4:50 pm
1 stop15h 25m
Southampton Eastleigh
Mon 9/14
9:05 am-4:35 pm
1 stop12h 30m
$1,222
BostonSouthampton
BOS - SOU
BOSSOU
Boston Logan Intl
Fri 8/7
4:45 pm-8:45 am
1 stop11h 00m
Southampton Eastleigh
Tue 8/11
6:05 pm-7:15 pm
2 stops30h 10m
$1,236
Showing 1-10 of 18 resultsSorted by cheapest first
Best time to book a flight from Boston to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Boston with our price prediction graph.
BOS-SOU
Estimated round-trip 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 Portsmouth
BOS-P0R
BOS-SOU
What is the cheapest time of day to fly from BOS to P0R?
Find hourly flight availability from Boston to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 3, 2026.
When flying from Boston to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Boston to Portsmouth
Explore weekly flight availability from Boston to Portsmouth. 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 August 3, 2026.
The most flights from BOS to P0R are scheduled on a Monday (39 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (23 on average).
Reviews of airlines servicing Portsmouth
Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated August 3, 2026.
See what other customers who have flown with Aer Lingus from Boston to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.4
Entertainment
7.0
Overall
7.3
Comfort
7.2
Crew
8.1
Food
6.7
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
BOS - SNN
Boarding
7.4
Entertainment
7.0
Overall
7.3
Comfort
7.2
Crew
8.1
Food
6.7
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
BOS - SNN
Related info for your journey
Find useful and relevant information for your journey from Boston to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Boston to Portsmouth
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Complete your trip
Complete your trip to Portsmouth by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from Boston to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Boston and Portsmouth flights
Browse other Boston and Portsmouth flight options. Last updated on August 3, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on August 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Boston to Portsmouth flights
Consider these flights traveling from Boston to Portsmouth.
Top 10 airlines flying from Boston to Portsmouth
Discover the top 10 airlines that operate flights from Boston to Portsmouth. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$352 | Average$885 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$417 | Average$753 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$425 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$429 | Average$655 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$430 | Average$711 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$465 | Average$786 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$466 | Average$703 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$470 | Average$684 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$479 | Average$742 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$481 | Average$694 | FlexibilityNo cancel fee | On-time77% |