Cheap flights from Washington to Boston from $141 DCA, IAD → BOS

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $83 to $287.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

No. We hold 4-night return fares on 1 other departure date within 3 days of 10 Dec, and it is not cheaper.

Every date we hold

153 fares on 6 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $156.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $51 to $95.

At $141, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 26 Nov to compare.

Every date we hold

23 fares on 12 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $64.

Return

Fares 30 to 59 days before departure were typically 50% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

Fares 60 to 89 days before departure were typically 41% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Washington to Boston?

The cheapest return found recently is $176 with jetBlue, 10 Dec to 14 Dec, found 2 days ago. The cheapest return we hold, of any age, is $156 with Frontier Airlines, 10 Dec to 13 Dec, found 8 days ago. The cheapest return fare on each of 6 departure dates is usually $210 to $301.

How much is a one-way flight from Washington to Boston?

The cheapest one-way found recently is $141 with jetBlue, 26 Nov, found 3 days ago. The cheapest one-way we hold, of any age, is $64 with jetBlue, 14 Nov, found 6 days ago. The cheapest one-way fare on each of 12 departure dates is usually $66 to $99.

What is the cheapest month to fly from Washington to Boston?

December 2026 is the cheapest month for a return, from $156, 10 Dec to 13 Dec, found 8 days ago. November 2026 is the cheapest month for a one-way, from $64, 14 Nov, found 6 days ago.

How far ahead should I book a flight from Washington to Boston?

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 50% lower than 0 to 6 days before departure. One-way fares 60 to 89 days before departure were typically 41% lower than 0 to 6 days before departure.

Is there a direct flight from Washington to Boston?

Yes, the cheapest nonstop return found recently is $274 with jetBlue, 9 Dec to 13 Dec, found 4 days ago. The cheapest nonstop one-way found recently is $66 with American Airlines, 26 Nov, found 4 days ago.

Every nonstop date from Washington to Boston

How long is the flight from Washington to Boston?

The cheapest nonstop one-way found recently, with American Airlines on 26 Nov, takes 1 h 50 min from Ronald Reagan National Airport (DCA) to Logan International Airport (BOS).

Which airlines have the cheapest flights from Washington to Boston?

Between 25 Nov and 20 Apr 2027, jetBlue has the cheapest return on 3 of the 6 departure dates we hold, United Airlines on 1 and American Airlines on 1. Between 13 Nov and 24 Feb 2027, jetBlue has the cheapest one-way on 9 of the 12 departure dates we hold, American Airlines on 2 and Frontier Airlines on 1.