BOI - WAS

$99 Find Cheap Flights from Boise to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Washington, D.C. departing on 8/11. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C.

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Washington, D.C..
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Washington, D.C..
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% 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.

Everything you should know

Cheapest round-trip
$197
Typical prices: $584-$394
Delta
Tue 9/22Tue 9/29
BOI - IAD • 1 stop
Cheapest one-way
$99
Typical prices: $216-$382
Delta
Tue 8/11
BOI - IAD • 1 stop
Top airlines
Cheapest • from $197 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boise and Washington, D.C.. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $300 (round-trip)
Shortest trip • 6h 00m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 59% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Washington, D.C.!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Washington, D.C. (BOI-WAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Washington, D.C. 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Washington, D.C.

Tue, Sep 22 - Tue, Sep 29
Delta Logo
10:35 am - 10:49 pm
BOI
-
IAD
10h 14m
1 stop
Delta Logo
7:10 am - 3:12 pm
IAD
-
BOI
10h 02m
1 stop
$197Delta
Tue, Sep 22 - Tue, Sep 29
American Airlines Logo
3:21 pm - 11:59 pm
BOI
-
DCA
6h 38m
1 stop
American Airlines Logo
8:40 am - 2:31 pm
DCA
-
BOI
7h 51m
1 stop
$197American Airlines
Tue, Aug 18 - Tue, Aug 25
Delta Logo
6:39 pm - 6:20 am
BOI
-
BWI
9h 41m
1 stop
Delta Logo
7:39 am - 12:14 pm
BWI
-
BOI
6h 35m
1 stop
$197Delta
Sat, Sep 19 - Tue, Sep 22
American Airlines Logo
3:21 pm - 11:59 pm
BOI
-
DCA
6h 38m
1 stop
American Airlines Logo
8:40 am - 2:31 pm
DCA
-
BOI
7h 51m
1 stop
$214American Airlines
Sat, Sep 19 - Tue, Sep 22
Delta Logo
5:20 am - 1:33 pm
BOI
-
IAD
6h 13m
1 stop
Delta Logo
6:47 pm - 11:55 pm
IAD
-
BOI
7h 08m
1 stop
$214Delta
Tue, Aug 4 - Sun, Aug 9
Frontier Logo
1:24 pm - 12:51 pm
BOI
-
DCA
21h 27m
1 stop
Frontier Logo
7:00 am - 12:29 pm
DCA
-
BOI
7h 29m
1 stop
$243Frontier
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
2:08 pm - 11:59 pm
BOI
-
IAD
7h 51m
1 stop
Alaska Airlines Logo
7:00 am - 3:23 pm
IAD
-
BOI
10h 23m
1 stop
$293Alaska Airlines
Tue, Aug 11 - Tue, Aug 18
Alaska Airlines Logo
8:00 pm - 6:45 pm
BOI
-
IAD
20h 45m
1 stop
Alaska Airlines Logo
9:30 am - 6:11 pm
IAD
-
BOI
10h 41m
1 stop
$313Alaska Airlines
Tue, Aug 18 - Tue, Aug 25
Southwest Logo
2:20 pm - 6:30 am
BOI
-
BWI
14h 10m
1 stop
Southwest Logo
6:30 am - 1:40 pm
BWI
-
BOI
9h 10m
2 stops
$325Southwest
Thu, Oct 1 - Mon, Oct 5
Southwest Logo
6:05 pm - 5:40 am
BOI
-
BWI
9h 35m
1 stop
Southwest Logo
8:40 am - 5:25 pm
BWI
-
BOI
10h 45m
1 stop
$345Southwest
Booking Insights

KAYAK's insights & trends for Boise to Washington, D.C. flights

Get data-powered insights and trends into flights from Boise to Washington, D.C. to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Boise to Washington, D.C.?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boise to Washington, D.C. departing in September.

What is the cheapest month to fly from Boise to Washington, D.C.?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Washington, D.C., removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Washington, D.C. is May, where tickets cost $78 (return) on average. On the other hand, the most expensive months are April and July, where the average cost of round-trip tickets is $282 and $262 respectively.

Good to know

Low seasonFebruary
Cheapest flight$99
Best time to beat the crowds with an average 38% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Boise to Washington Dulles Airport

When to book flights from Boise to Washington, D.C.

Are your dates flexible? Find out the best times to travel from Boise to Washington, D.C. based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Washington, D.C.

  • What is the cheapest flight from Boise to Washington, D.C.?

    In the last 5 days, the lowest price for a flight from Boise to Washington, D.C. was $99 for a one-way ticket and $197 for a round-trip.

  • Do I need a passport to fly between Boise and Washington, D.C.?

    A passport is not required to fly from Boise to Washington, D.C..

  • Which airports will I be using when flying from Boise to Washington, D.C.?

    When flying out of Boise you will be using Boise Air Term. Gowen Fld. You will be landing at one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl.

  • Which aircraft models fly most regularly from Boise to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Washington, D.C.?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Boise and Washington, D.C., with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Boise to Washington, D.C., Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Boise to Washington, D.C. are Southwest and Delta. With an average price for the route of $400 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $347 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boise to Washington, D.C.?

    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 Boise to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Boise 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 Boise to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Boise with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Washington, D.C.?

    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 Washington, D.C. from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Boise to Washington, D.C.

 
See real verified KAYAK customer reviews for airlines flying from Boise to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Washington, D.C.? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4255 reviews
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

2.0 MediocreDawn, Jun 2026
BUF - BWI
Read more Southwest reviews

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

I'm glad it wasn't only 75% full because I could get a good seat

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Agent could not provide me a boarding pass for the second leg of my flights - yet with a partner airline. Not understood.

Flight was cancelled which destroyed the rest of our journey.

This was my second time flying Alaska Airline in the 1st Class cabin. Everything was fine with the exception of the food and entertainment. The food was just ok but not what I was expecting from 1st Class. A BBQ pork sandwich and baked potato. There wasnt any in-flight entertainment. I found that odd since it was a coast to coast flight Seattle to Dulles. My sister flew 1st Class on Delta on a shorter flight ( Seattle to Cincinnati) and had an awesome meal and in-flight entertainment. I typically fly Delta but there wasn’t a flight with times that fit my schedule. I am by no means a primary donna. But when my upgrade cost over $900…I didn’t use any reward miles…I was expecting more than what I got. I will never fly Alaska Airline 1st Class again. I will stick with Delta for all my travel needs whether it’s in 1st Class or coach.

WOuld have liked coffee or pretzels but other than that, crew and pilot and flight were great. Seat was great, too.

Very easy, stress free airline. Was a wonderful experience. Will use again

The overhead storage was already packed full when I boarded (I fly peasant class), but the attendant played some Tetris and made a spot for my small suitcase. Thanks!

Snacks for our toddler could have been better, front the standpoint of variety but that’s not any different from other airlines.

This was my first trip with Alaska Airlines (round trip DCA to San Diego). Despite a slight delay on the return flight, I feel compelled to post a RAVE review! I cannot praise the airline and the crew enough! Everyone was kind, professional, and courteous, every step of the way- excellent service, snacks, and entertainment! On both legs of the trip I inquired whether there were any free seating upgrades and my request were granted BOTH times! I’ve flown on other airlines where they won’t do that, even when those premium seats are empty. As a customer service professional myself, I can say I left my experience feeling like a valued customer and not just a number. I NEVER expected to praise an airline lol I’ll definitely go out of my way to fly with Alaska on future trips. Thank you for such an awesome experience!

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

I fell asleep and missed my flight and they rescheduled me no problem. Staff was professional and the plane was clean. I was very happy with my experience.

Average seat comfort, a drink and chips were provided, early boarding because we checked a carryon at the gate was nice. Ticket pricing shenanigans, including fees to pick a seat, check a bag, and get food onboard - evidence the industry is reinvigorating last century’s strategies- destroys the experience before one ever arrives at the airport. It’s difficult to recognize any value or sustain loyalty in the end-to-end process making air travel more drudgery than pleasure.

Gate agent was unhelpful for handicapped boarding. Flight attendant seemed untrained.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

MY FAMILY'S LUGGAGE WAS LOST FROM ROME TO BARI. I WAS THE ONLY ONE THAT RECEIVED MY LUGGAGE FROM ROME TO BARI. AFTER DEPLANING IN BARI, WE WASTED A LOT OF TIME AT BAG CLAIMS LOST AND FOUND REPORTING THE CLAIM AND PLEADING FOR THE BAGS TO BE DELIVERED THE NEXT DAY. WE WERE TOLD THAT IT TAKES 3 DAYS MINIMUM TO DELIVER. MY DAUGHTER AND MY GIRLFRIEND NEEDED THEIR PERSONAL THINGS AND WE WERE STAYING 3 HOURS AWAY FROM THE BARI AIRPORT. WE HAD TO DRIVE 3 HOURS TO THE AIRPORT TO COLLECT OUR LOST LUGGAGE THE NEXT DAY. WE ARE NOT HAPPY WITH THE EXPERIENCE

There were no facilities in the middle of the aircraft and premium economy was not allowed to use the business class facilities, and had to share the only two toilets at the back with economy. The upgrade to Premium was definitely not worth it

Our flight to Rome, Italy was cancelled the day of and we were never informed. We only found out because I was trying to get into my husbands account and called to get his account number. Had to pay more for worse seating on another airline.

The economy seat was much less comfortable for an international flight in terms of recline and moving space when food tray is expanded. Per entertainment, it would be amazing if I could connect my Bluetooth headset or ear phones to the entertainment screen. Or provide in-flight wifi to connect directly from my own device.

We were a little disappointed to not be able to complete check in online without uploading pics of passports. Also we have KTN's and they weren't on our boarding passes when we got to security. Had to trek back to counter to have them fix.

Excellent service in Polaris class IAD to ZRH. Arrived rested and well fed after the overnight flight.

It's a short hop. My carryon was checked at the gate, I didn't have to drag it all over the airport. Excellent wheelchair assist.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

Terrific in every way. On time, professional staff, multiple movie options to select, great food and drink.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

It was great. Smooth flight, comfortable, left on time and landed on time.

Horrible experience upon landing. Probably more due to DCA utter incompetence than AA.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Poor communication ahead of time about flight delays and old planes/other equipment.

Never going to fly your airline again if it can be avoided.

Not to have gotten delayed by 2+ hours for the fourth straight American flight. They're the worst.

Other than nearly three hour delay for maintenance issues, everything went smooth

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

Everything you need to know for your flight from Boise to Washington, D.C.

Information on your arrival and departure airports