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Boston to Washington BOS, PSM → DCA, IAD

Logan International Airport (BOS), Pease Air Force Base (PSM) → Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD)

The cheapest return found recently is $296 with jetBlue, 12 Nov – 15 Nov, found yesterday. The cheapest one-way found recently is $130 with Frontier Airlines, 3 Nov, found today.

Return

The cheapest return fare on each of 6 departure dates is usually $135 to $313.

Cheapest return found recently

$296

12 Nov – 15 Nov · jetBlue

Logan International Airport (BOS) → Ronald Reagan National Airport (DCA)

Leaves 4:09 p.m. · Return leaves 6:15 a.m. · 10 h 32 min of travel, both ways together

out 1 stop, back 1 stop

found yesterday

See prices for these datesCheck today's price

Cheapest nonstop return

$314

22 Oct – 25 Oct · jetBlue

Logan International Airport (BOS) → Ronald Reagan National Airport (DCA)

Leaves 2:19 p.m. · Return leaves 8:00 a.m. · 3 h 27 min of travel, both ways together

out nonstop, back nonstop

found yesterday

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Found recently, and the cheapest we hold

Cheapest found recently $296 12 Nov – 15 Novfound yesterdaySee prices for these dates

Cheapest we hold, of any age $115 12 Nov – 14 Novfound 6 days agoSee prices for these dates

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $115 to $398.

$296, the cheapest return found recently, sits here in that range of $115 to $398.

25 days is a short history, so treat this range as an early guide.

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

Is this a good return price?

Compared with the cheapest return fare on each of 6 departure dates from 22 Oct to 20 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 3-night return fares leaving within 3 days of 12 Nov to compare.

Every date we hold

9 fares on 6 departure dates

22 Oct – 25 Oct: $314, found yesterday23 Oct – 25 Oct: $310, found yesterday6 Nov – 8 Nov: $120, found 5 days ago12 Nov – 14 Nov: $115, found 6 days ago25 Nov – 28 Nov: $366, found yesterday20 Jan 2027 – 23 Jan 2027: $181, found 3 days agoOctNovJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
22 Oct – 25 Oct$314jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)out nonstop, back nonstopfound yesterdaySee prices for these dates
23 Oct – 25 Oct$310Frontier AirlinesLogan International Airport (BOS) → Washington Dulles International Airport (IAD)out 1 stop, back nonstopfound yesterdaySee prices for these dates
6 Nov – 8 Nov$120jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)out nonstop, back nonstopfound 5 days agoSee prices for these dates
12 Nov – 14 Nov$115jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)out nonstop, back nonstopfound 6 days agoSee prices for these dates
25 Nov – 28 Nov$366American AirlinesLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)out 1 stop, back 1 stopfound yesterdaySee prices for these dates
20 Jan 2027 – 23 Jan 2027$181jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)out nonstop, back nonstopfound 3 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $115.

October 2026From $3102 departure dates23 Oct – 25 Oct · found yesterdaySee prices for these dates
November 2026From $115Cheapest seen3 departure dates12 Nov – 14 Nov · found 6 days agoSee prices for these datesEvery date in November 2026
January 2027From $1811 departure date20 Jan 2027 – 23 Jan 2027 · found 3 days agoSee prices for these dates

Airlines on the cheapest dates: jetBlue, Frontier Airlines, American Airlines.

One-way

The cheapest one-way fare on each of 10 departure dates is usually $64 to $129.

Cheapest one-way found recently

$130

3 Nov · Frontier Airlines

Logan International Airport (BOS) → Washington Dulles International Airport (IAD)

Leaves 12:15 p.m. · 11 h 28 min trip

1 stop

found today

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Cheapest nonstop one-way

$60

15 Nov · United Airlines

Logan International Airport (BOS) → Washington Dulles International Airport (IAD)

Leaves 5:30 a.m. · 1 h 40 min trip

nonstop

found 4 days ago

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Found recently, and the cheapest we hold

Cheapest found recently $130 3 Novfound todayOpen this trip

Cheapest we hold, of any age $59 12 Jan 2027found 6 days agoOpen this trip

What have prices looked like?

Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $50 to $59.

At $130, the cheapest one-way found recently is above that range.

25 days is a short history, so treat this range as an early guide.

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

Is this a good one-way price?

Compared with the cheapest one-way fare on each of 10 departure dates from 24 Oct to 12 Jan 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

Yes. Among one-way fares leaving within 3 days of 3 Nov, 5 Nov costs $110: $20 less than the cheapest found recently.

jetBlue · Logan International Airport (BOS) → Ronald Reagan National Airport (DCA) · 1 stop · found 2 days ago

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Every date we hold

11 fares on 10 departure dates

24 Oct: $124, found 3 days ago1 Nov: $160, found 4 days ago2 Nov: $72, found 4 days ago3 Nov: $130, found today5 Nov: $110, found 2 days ago11 Nov: $61, found 4 days ago12 Nov: $74, found 3 days ago15 Nov: $60, found 4 days ago29 Nov: $270, found 6 days ago12 Jan 2027: $59, found 6 days agoOctNovJan
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
24 Oct$124jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)stops unknownfound 3 days agoOpen this trip
1 Nov$160Frontier AirlinesLogan International Airport (BOS) → Washington Dulles International Airport (IAD)1 stopfound 4 days agoOpen this trip
2 Nov$72jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)1 stopfound 4 days agoOpen this trip
3 Nov$130Frontier AirlinesLogan International Airport (BOS) → Washington Dulles International Airport (IAD)1 stopfound todayOpen this trip
5 Nov$110jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)1 stopfound 2 days agoOpen this trip
11 Nov$61jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)nonstopfound 4 days agoOpen this trip
12 Nov$74jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)1 stopfound 3 days agoOpen this trip
15 Nov$60United AirlinesLogan International Airport (BOS) → Washington Dulles International Airport (IAD)nonstopfound 4 days agoOpen this trip
29 Nov$270United AirlinesLogan International Airport (BOS) → Washington Dulles International Airport (IAD)nonstopfound 6 days agoOpen this trip
12 Jan 2027$59jetBlueLogan International Airport (BOS) → Ronald Reagan National Airport (DCA)nonstopfound 6 days agoOpen this trip

Which month looks cheapest?

January 2027 is the cheapest month — from $59.

October 2026From $1241 departure date24 Oct · found 3 days agoOpen this trip
November 2026From $608 departure dates15 Nov · found 4 days agoOpen this tripEvery date in November 2026
January 2027From $59Cheapest seen1 departure date12 Jan 2027 · found 6 days agoOpen this trip

Airlines on the cheapest dates: jetBlue, Frontier Airlines, United Airlines.

Premium cabin fares from Boston to Washington

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 12 Nov – 15 Nov in another cabin: Premium economy · Business · First

Today's prices for 3 Nov in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Boston to Washington?

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 18 Oct (25 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.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$234$228+100%19
14–29 days$185$115+58%13
30–59 days$117$115Cheapest seen13
90–179 days$117$117+0%9

One-way

Fares 14 to 29 days before departure were typically 51% lower than 0 to 6 days before departure.

From the cheapest one-way each day between 24 Sept and 18 Oct (25 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.

See these ranges as a table
Typical price in each booking range — one way, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$110$98+104%17
7–13 days$157$124+191%7
14–29 days$54$50Cheapest seen24
30–59 days$58$55+7%18
60–89 days$59$56+9%25
180+ days$1,734$1,734+3111%8

Could a nearby airport be cheaper?

A different airport at either end can change the fare — sometimes a lot.

Return

Hartford → Washington

142 km from Boston

$355

$59 more than flying from Boston

22 Dec – 3 Jan 2027 · BDL → DCA · out nonstop, back nonstop

found yesterday

Check today's price

Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.

One-way

Hartford → Washington

142 km from Boston

$142

$12 more than flying from Boston

23 Oct · BDL → IAD · 1 stop

found 6 days ago

Check today's price

Boston → Baltimore

57 km from Washington

$177

$47 more than flying to Washington

15 Nov · PSM → BWI · 1 stop

found 4 days ago

See this route

Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.

Live price for these dates

The cheapest return found recently is for 12 Nov – 15 Nov. A live search on this page shows what those dates cost now, for one adult in economy.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work