BWI - BOI

$100 Find Cheap Flights from Baltimore to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Baltimore to Boise departing on 2/5. 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 Boise

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Baltimore to Boise, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% 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
$230
Overall average: $471
Southwest
Wed 2/4Tue 2/10
BWI - BOI • 1 stop
Cheapest one-way
$100
Typical prices: $183-$233
Frontier
Thu 2/5
BWI - BOI • 2 stops
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 24% price drop
May
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 Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Baltimore to Boise (BWI-BOI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Baltimore to Boise 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 Baltimore to Boise

Wed, Feb 4 - Tue, Feb 10
Southwest Logo
4:00 pm - 10:30 pm
BWI
-
BOI
8h 30m1 stop
Southwest Logo
11:20 am - 7:45 pm
BOI
-
BWI
6h 25m1 stop
$230Southwest
Wed, Feb 4 - Tue, Feb 10
Southwest Logo
2:40 pm - 11:10 pm
BWI
-
BOI
10h 30m2 stops
Southwest Logo
7:45 am - 4:05 pm
BOI
-
BWI
6h 20m1 stop
$236Southwest
Wed, Feb 4 - Tue, Feb 10
Southwest Logo
2:40 pm - 11:10 pm
BWI
-
BOI
10h 30m2 stops
Southwest Logo
7:45 am - 5:30 pm
BOI
-
BWI
7h 45m2 stops
$241Southwest
Wed, Mar 18 - Wed, Mar 25
Delta Logo
7:01 am - 6:43 pm
BWI
-
BOI
13h 42m2 stops
Delta Logo
9:00 am - 11:59 pm
BOI
-
BWI
12h 59m2 stops
$276Delta
Wed, Feb 4 - Wed, Feb 11
Delta Logo
3:00 pm - 8:55 pm
BWI
-
BOI
7h 55m1 stop
Delta Logo
1:00 pm - 11:44 pm
BOI
-
BWI
8h 44m1 stop
$279Delta
Tue, Mar 10 - Wed, Mar 25
Southwest Logo
5:00 pm - 12:30 am
BWI
-
BOI
9h 30m2 stops
Southwest Logo
3:15 pm - 11:15 pm
BOI
-
BWI
6h 00m1 stop
$284Southwest
Tue, Mar 10 - Wed, Mar 25
Southwest Logo
2:05 pm - 10:20 pm
BWI
-
BOI
10h 15m2 stops
Southwest Logo
11:10 am - 11:00 pm
BOI
-
BWI
9h 50m2 stops
$290Southwest
Sat, Feb 21 - Sat, Feb 28
Delta Logo
6:05 am - 1:59 pm
BWI
-
BOI
9h 54m1 stop
Delta Logo
3:01 pm - 11:12 pm
BOI
-
BWI
6h 11m1 stop
$307Delta
Thu, Feb 5 - Wed, Feb 11
Delta Logo
6:00 am - 12:30 pm
BWI
-
BOI
8h 30m1 stop
Delta Logo
1:00 pm - 11:44 pm
BOI
-
BWI
8h 44m1 stop
$308Delta
Mon, Mar 16 - Tue, Mar 17
American Airlines Logo
6:52 am - 1:00 pm
BWI
-
BOI
8h 08m1 stop
American Airlines Logo
1:31 pm - 11:33 pm
BOI
-
BWI
8h 02m1 stop
$310American Airlines
Booking Insights

KAYAK's insights & trends for Baltimore to Boise flights

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

What is the cheapest month to fly from Baltimore to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Baltimore to Boise, 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 Baltimore to Boise is January, where tickets cost $342 (return) on average. On the other hand, the most expensive months are November and May, where the average cost of round-trip tickets is $559 and $536 respectively.

How far in advance should I book a flight from Baltimore to Boise?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Baltimore to Boise, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Baltimore to Boise, you should book around 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$100
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Baltimore to Boise

When to book flights from Baltimore to Boise

Are your dates flexible? Find out the best times to travel from Baltimore to Boise 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 Baltimore to Boise

  • What is the cheapest flight from Baltimore to Boise?

    In the last 3 days, the lowest price for a flight from Baltimore to Boise was $100 for a one-way ticket and $230 for a round-trip.

  • Do I need a passport to fly between Baltimore and Boise?

    A passport is not required to fly from Baltimore to Boise.

  • Which airports will I be using when flying from Baltimore to Boise?

    Baltimore airport is called Baltimore/Washington and the only airport in Boise is Boise Air Term. Gowen Fld.

  • Which aircraft models fly most regularly from Baltimore to Boise?

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

  • Which airline alliances offer flights from Baltimore to Boise?

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

  • Which is the best airline for flights from Baltimore to Boise, Southwest or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Baltimore to Boise are Southwest and Alaska Airlines. With an average price for the route of $483 and an overall rating of 8.0, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $372 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Baltimore to Boise?

    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 Baltimore to Boise.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Baltimore to Boise?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boise from Baltimore 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 Baltimore to Boise?

    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 Boise with an airline and back to Baltimore with another airline. Booking your flights between Baltimore and BOI can sometimes prove cheaper using this method.

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

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

Reviews of the top 4 airlines serving from Baltimore to Boise

 
See real verified KAYAK customer reviews for airlines flying from Baltimore to Boise. 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 Baltimore to Boise? 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
Alaska AirlinesOverall score based on 11661 reviews
7.1Food
8.1Boarding
7.0Entertainment
8.5Crew
7.8Comfort
Airline reviews

The cabin crew was absolutely wonderful, the service was great and it was just a good flight overall.

10.0 ExcellentAnonymous, Jan 2026
SEA - SLC
Read more Alaska Airlines reviews

The cabin crew was absolutely wonderful, the service was great and it was just a good flight overall.

Alaska is generally the airline I fly nearly all the time. I nearly always have wonderful experiences on Alaska and never a complaint. However, this entire flight felt like we were in the cheap seats the entire time and I had even upgraded to a cushier seat. For an over six hour flight (that became 7 hours) there was no online entertainment. I couldn’t connect to Wi-Fi and we were offered one snack and one drink. We were instructed to go to a particular baggage claim and 30 minutes later our bag still hadn’t come out and it turned out it was the wrong carousel announced. So overall, this flight was a series of mishaps really less than mediocre service even though flight attendants were wonderful.

The flight crew was very professional and pleasant. Our flight was delayed 3 hours, but Kayak informed me in advance

I really hate the seat assignment at the gate. I understand it is so families can sit together but it caused me and others a lot of unnecessary stress and confusion, enough for me to not fly Alaska again. The app is so awful that it did not even update my seat assignment on the boarding pass but sent me a notification of my seat... it showed in Apple Wallet but not in the Alaska app itself. That only made the stress worse. I think most people like myself prefer to know where they are seated at check in 24 hours before so they don't have to anxiously hang out at the gate the entire time. This is not a good use of your agents time either to be dealing with all of us asking where we are sitting. You should automatically assign the multiple seat purchases to be together before they check in and fill us solo travelers in those gaps as we check in.

My Alaska Airlines return flight, although worked out in the end, didn't start off well. The initial plane that my family and I boarded was grounded because of a mishap that happened to one of the engines and everyone on board had to disembark the plane. Thankfully we were accommodated with a another plane but our initial flight was supposed to have departed at 11 pm San Diego time for Orlando but instead we ended up leaving at 1:40 am San Diego time. All Passengers were informed that part of the delay was that the plane had to be inspected by the captain, the food had to be stocked and the individuals responsible for fueling the plane left for the evening and had to be summoned to return to fill up our. The Alaska Airlines crew at the airport and on the plane were awesome and apologetic. I know that the crew wasn't responsible for the mishap of the engine but I think in the future the airline should offer a complimentary drink or (1) item of food other than pretzels, nuts or chips to all passengers since we're not to blame for the extreme set backs. The airline in general is good and I recommend to all flyers.

Alaska Airlines have beautiful new airplanes that have comfortable seats but tight for a tall person like myself. They do provide upgrades to flyers but at a $140 cost. My flight went smooth and prompt as well as without a hitch. The flight crew were warm and friendly as well as very attentive. I'd recommend this airline over Frontier airlines any day.

I like them since I live in Alaska and I don't have much choice

My first flight was delayed by over an hour, luckily I had Long layovers on an itinerary from hell, because when you book a Saver ticket, they change your itinerary and make it many stops and long layovers, and there were still delays. On the return flight there was a delay in the first leg, Orlando to Seattle, so I got up really early for nothing, and on the last leg Anchorage to Fairbanks, it was over 2 hours late taking off! I didn't get home until 1 :30am! By the time I got my luggage, the flight landed at 1 am. For the departure day, I was up from 6am to when I arrived the next day at 6am in Orlando. So I was up for 22 hours, 3:15am to almost 2 am the next day. On the return day. The moral of the story is, DON"T EVER BUY SAVER TICKETS! You can't even upgrade your seat when you do that and then at the last minute they want Big bucks to upgrade the day before leaving.

I had the worst seat neighbors thry literally snored so loud and the man next to me man spreaded the whole time i couldnt sleep

Service was great! 👍 Seats were small and absolutely not enough leg and feet room!!!

The flight crew was extremely rude and especially not helpful when our flight was delayed.

Pretty seamless, just a tad bit late in taking off and landing.

Flight was fine other than there was a gate change that I was not notified of. By chance I happened to check my phone and saw the change, otherwise, we would have missed our connecting flight.

Haven’t flown on SW in years. Flight was on time departing and arriving. Served vegan butter onion flavored pretzels which were bad. Coke served was in a tiny paper cup. Crew was not engaging. Felt like they were going through the motions. Old plane, tight seats and no leg room.

Check-in, Boarding and flight were smooth. All the employees and crew was very nice and funny. They gave the kids crayons and workbooks to keep them occupied which was a big win. I’ve flown Southwest many times and that’s the first time I’ve seen that and it is a great addition.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

Okay, not wonderful. Short flight. Wi-fi didn't work properly. Stuck waiting for a gate to open upon arrival for 20 or so minutes.

They sent a notice that they were boarding an hour early. We had to leave the club and run to the gate. They said sorry, that came from corporate and was a mistake. They did not have enough seating because the flight before it had not taken off on time. They moved our gate and delayed it for an hour.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Flight was late from Newark to Atlanta, I asked flight attendant to please let my family of 3 out first when we landed to Atlanta because we were late for our connecting flight to Quito. She didn't and we were late for 5 minutes we couldn't board the plane and spend hours trying to get another flight with customer service for the next day.

I really liked the legroom. I am 6’4”.a at For some reason our seats were not together and using the app to fix it didn’t work. Passengers were nice enough to move for us but you should absolutely ensure a parent sits with their child.

Late delayed flight delays boarding and delays leaving and delays on arrival too. Cramped plane no room no food.

DTW line is too long. The flights from DTW to BWI are always delayed for unknown reasons.

Delta canceled our flight and we had to scramble to find another airline to get home. Phoenix is not a delta hub so they didn’t have another plane. It would have been a red eye though Salt Lake City. Getting in at 5am. No bueno.

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Everything you need to know for your flight from Baltimore to Boise

Information on your arrival and departure airports