$225 Cheap Flights from Baltimore (BWI) to Kailua-Kona (KOA)

View $225 flight on Wed, Sep 24, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Kailua-Kona (BWI-KOA)

Prices were available within the past 7 days and start at $225 for one-way flights and $429 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bargain Flight
Mon, Sep 22 - Tue, Sep 30
BWI
Baltimore
KOA
Kona Coast
$429 Roundtrip, found 6 hours ago
$429
Roundtrip
found 6 hours ago
Select Bargain Flight flight, departing Mon, Sep 22 from Baltimore to Kona Coast, returning Tue, Sep 30, priced at $429 found 6 hours ago
United
Tue, May 13 - Fri, May 23
BWI
Baltimore
KOA
Kona Coast
$449 Roundtrip, found 13 hours ago
$449
Roundtrip
found 13 hours ago
Select United flight, departing Tue, May 13 from Baltimore to Kona Coast, returning Fri, May 23, priced at $449 found 13 hours ago
Southwest Airlines
Mon, Sep 1 - Thu, Sep 4
BWI
Baltimore
KOA
Kona Coast
$454 Roundtrip, found 3 days ago
$454
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Mon, Sep 1 from Baltimore to Kona Coast, returning Thu, Sep 4, priced at $454 found 3 days ago
United
Fri, May 9 - Tue, May 13
BWI
Baltimore
KOA
Kona Coast
$455 Roundtrip, found 2 days ago
$455
Roundtrip
found 2 days ago
Select United flight, departing Fri, May 9 from Baltimore to Kona Coast, returning Tue, May 13, priced at $455 found 2 days ago
Alaska Airlines
Tue, Sep 9 - Wed, Sep 17
BWI
Baltimore
KOA
Kona Coast
$457 Roundtrip, found 3 hours ago
$457
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Sep 9 from Baltimore to Kona Coast, returning Wed, Sep 17, priced at $457 found 3 hours ago
Delta
Tue, Oct 21 - Fri, Oct 31
BWI
Baltimore
KOA
Kona Coast
$457 Roundtrip, found 7 hours ago
$457
Roundtrip
found 7 hours ago
Select Delta flight, departing Tue, Oct 21 from Baltimore to Kona Coast, returning Fri, Oct 31, priced at $457 found 7 hours ago
Delta
Tue, Sep 9 - Tue, Sep 23
BWI
Baltimore
KOA
Kona Coast
$460 Roundtrip, found 4 hours ago
$460
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Sep 9 from Baltimore to Kona Coast, returning Tue, Sep 23, priced at $460 found 4 hours ago
American Airlines
Mon, Sep 1 - Tue, Sep 9
BWI
Baltimore
KOA
Kona Coast
$460 Roundtrip, found 13 hours ago
$460
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Mon, Sep 1 from Baltimore to Kona Coast, returning Tue, Sep 9, priced at $460 found 13 hours ago
United
Thu, May 8 - Thu, May 15
BWI
Baltimore
KOA
Kona Coast
$460 Roundtrip, just found
$460
Roundtrip
just found
Select United flight, departing Thu, May 8 from Baltimore to Kona Coast, returning Thu, May 15, priced at $460 just found
United
Thu, Aug 21 - Mon, Aug 25
BWI
Baltimore
KOA
Kona Coast
$461 Roundtrip, found 12 hours ago
$461
Roundtrip
found 12 hours ago
Select United flight, departing Thu, Aug 21 from Baltimore to Kona Coast, returning Mon, Aug 25, priced at $461 found 12 hours ago
Flights from Baltimore (BWI) to Kailua-Kona (KOA)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Kona Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Southwest Airlines, United
Roundtrip price
$428
Distance
4811 mi

Baltimore to Kailua-Kona Flights

The cheapest times to fly from Baltimore to Kailua-Kona

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Kailua-Kona are during the month of September. You can find some of the cheapest flights from Baltimore to Kailua-Kona with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Baltimore to Kailua-Kona

Sunday is one of the best days to book for cheap flights from Baltimore to Kailua-Kona: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Baltimore to Kailua-Kona

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Kailua-Kona in 2025. You can also book with separate airlines for your outbound and return journeys, from $225 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Kailua-Kona flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Kailua-Kona airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA) cost?
Discover the latest flight deals from BWI to KOA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to KOA?
The cheapest flights from BWI to KOA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to KOA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from BWI to KOA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA)?
There aren’t any daily nonstop flights available from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be cruising above the clouds in no time at all.
What day of the week has the most flights from BWI to KOA?
You’ll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA)?
Choose a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA) last-minute?
Last-minute bookings from BWI to KOA are usually more expensive. To secure the best rates, start searching for flights well ahead of time. That being said, if your travel plans are flexible, it’s possible to land a cheap fare just before your departure.
Is it cheaper to book a BWI to KOA flight and hotel package?
You’ll generally save money by securing a BWI to KOA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one place. After selecting your ideal flights and accommodations, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Kona Intl. Airport (KOA)?
If you reserved your BWI to KOA flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for more information.

Explore a world of travel with Expedia

*Available to One Key members.