$50 Cheap flight deals from Washington (WAS) to Portsmouth (BOS)

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This Weekend's Flight Deals from Washington to Portsmouth

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 4 - Sat, Apr 11
IAD
Washington Dulles Intl.
BOS
Logan Intl.
$241 Roundtrip, found 10 hours ago
$241
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Sat, Apr 4 from Washington Dulles Intl. to Logan Intl., returning Sat, Apr 11, priced at $241 found 10 hours ago
Sun, Apr 5 - Tue, Apr 7
BWI
Baltimore Washington Intl. Thurgood Marshall
BOS
Logan Intl.
$276 Roundtrip, found 1 day ago
$276
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Sun, Apr 5 from Baltimore Washington Intl. Thurgood Marshall to Logan Intl., returning Tue, Apr 7, priced at $276 found 1 day ago
Sat, Apr 4 - Tue, Apr 7
DCA
Ronald Reagan Washington National
MHT
Manchester-Boston Regional
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Apr 4 from Ronald Reagan Washington National to Manchester-Boston Regional, returning Tue, Apr 7, priced at $323 found 6 days ago
Sat, Apr 4 - Tue, Apr 7
IAD
Washington Dulles Intl.
MHT
Manchester-Boston Regional
$323 Roundtrip, found 6 days ago
$323
Roundtrip
found 6 days ago
Select United flight, departing Sat, Apr 4 from Washington Dulles Intl. to Manchester-Boston Regional, returning Tue, Apr 7, priced at $323 found 6 days ago

Airfares from $50 One Way, $99 Round Trip from Washington to Portsmouth

Prices starting at $99 for return flights and $50 for one-way flights to Portsmouth were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 21 - Wed, Apr 22
BWI
Baltimore
BOS
Boston
$99 Roundtrip, found 1 day ago
$99
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Apr 21 from Baltimore to Boston, returning Wed, Apr 22, priced at $99 found 1 day ago
Tue, May 5 - Tue, May 12
IAD
Washington
BOS
Boston
$140 Roundtrip, found 2 days ago
$140
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Tue, May 5 from Washington to Boston, returning Tue, May 12, priced at $140 found 2 days ago
Thu, Apr 16 - Mon, Apr 27
BWI
Baltimore
BOS
Boston
$140 Roundtrip, found 6 days ago
$140
Roundtrip
found 6 days ago
Select Frontier Airlines flight, departing Thu, Apr 16 from Baltimore to Boston, returning Mon, Apr 27, priced at $140 found 6 days ago
Tue, May 19 - Tue, May 26
DCA
Washington
BOS
Boston
$147 Roundtrip, found 4 days ago
$147
Roundtrip
found 4 days ago
Select JetBlue Airways flight, departing Tue, May 19 from Washington to Boston, returning Tue, May 26, priced at $147 found 4 days ago
Sat, May 23 - Tue, May 26
IAD
Washington
BOS
Boston
$155 Roundtrip, found 4 days ago
$155
Roundtrip
found 4 days ago
Select United flight, departing Sat, May 23 from Washington to Boston, returning Tue, May 26, priced at $155 found 4 days ago

Portsmouth economy flight packages

Price found within the past 48 hours. Click for updated prices.
Omni Parker House
4.5-star property

Omni Parker House

9/10 Wonderful! (3,322 reviews)

May 8 - May 11

3 night stay

Baltimore (BWI) to Boston (BOS)

Southwest Airlines • Coach

Boston (BOS) to Baltimore (BWI)

Frontier Airlines • Coach
Save 100% on your flight
Price was $787, price is now $586 per person
$586
per person
found 22 hours ago
The room was very small and the bathroom was smaller. It was fine because it was just one night and in the winter, so we got a great rate. We just kept saying thank goodness we didn't pay the high season rate. Location is amazing!

Reviewed on Mar 4, 2026

The Langham, Boston
5.0-star property

The Langham, Boston

9.6/10 Exceptional! (1,004 reviews)

May 14 - May 18

4 night stay

Washington (DCA) to Boston (BOS)

Delta • Coach

Boston (BOS) to Washington (DCA)

JetBlue Airways • Coach
Save 100% on your flight
Price was $2,687, price is now $1,961 per person
$1,961
per person
found 1 day ago
No complaints , everything . I would go back again and again.

Reviewed on Jan 12, 2026

The Royal Sonesta Boston
4.0-star property

The Royal Sonesta Boston

8.4/10 Very Good! (1,659 reviews)

May 14 - May 18

4 night stay

Washington (DCA) to Boston (BOS)

Delta • Coach

Boston (BOS) to Washington (DCA)

JetBlue Airways • Coach
Save 100% on your flight
Price was $1,270, price is now $930 per person
$930
per person
found 1 day ago
The room was really nice, we were able to upgrade so we had enough beds for everyone. The front desk was amazing, super helpful and kind! Kevwin was who we primarily worked with and was fantastic! We needed to be at MIT early and was a great a location. The only downside was the people next to us were loud, and the walls seemed thin. Other than great place!

Reviewed on Feb 16, 2026

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More About Flying To Portsmouth from Washington

Route Information for Flights from Washington to Portsmouth

Origin Airport IATA Code
WAS
Destination Airport IATA Code
BOS
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Washington to Portsmouth

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Increase Your Rewards While Enjoying Super Low Rates

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Frequently asked questions

Are there non-stop flights from Washington to Portsmouth?
Yep, your unforgettable vacation is just a single flight away. Great news, isn't it? Travel comfortably on board one of the 3 carriers that fly directly from DCA to Boston, MA (BOS-Logan Intl.). Popular options include:

  • American Airlines
  • Delta
  • JetBlue

What is the shortest flight from Washington to Portsmouth?
If conditions are good and there are no delays, you could be landing at Boston, MA (BOS-Logan Intl.) from DCA in only 1 hour and 23 minutes. With such a brief flight time, consider traveling with just hand luggage.
What airlines fly from Washington to Portsmouth most frequently?
American Airlines (AA) is one of the airlines with the most flights from National Airport to Logan Intl. Airport (BOS). It offers 230 services each month on this route. Taking off on a vacation is one of life's greatest pleasures, and this airline will get you to your destination quickly and safely. Alternatively, book your favorite aisle (or window) seat with Delta (DL). You'll have 165 monthly flights between Washington and Portsmouth to select from with this carrier.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.