$222+ Cheap flights from Helena (HLN) to District of Columbia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Helena to District of Columbia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Helena to District of Columbia
Keep the following information in mind while searching for Helena to District of Columbia flight deals. Data was last updated junio 12, 2025.
Round-trip from | $508 (Alaska Airlines) |
|---|---|
One-way from | $222 (Delta) |
Popular in | November |
Cheapest in | April |
Average price | $928 |
Find flight deals from Helena to District of Columbia
Cheapest flights from Helena to District of ColumbiaExplore the most affordable flight options available from Helena to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
Explore the most affordable flight options available from Helena to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from Helena to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
Use the filters below to find and compare flights from Helena to District of Columbia that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
HelenaWashington, D.C.
HLN - DCA
HLNDCA
Helena
vie. 10/31
6:13 pm-9:05 pm
2 stops24h 52m
Washington, D.C. Reagan-National
dom. 11/2
5:00 pm-5:36 pm
1 stop26h 36m
HelenaWashington, D.C.
HLN - IAD
HLNIAD
Helena
jue. 10/30
12:50 pm-11:49 pm
1 stop8h 59m
Washington, D.C. Dulles Intl
dom. 11/2
7:20 am-12:24 pm
1 stop7h 04m
HelenaWashington, D.C.
HLN - IAD
HLNIAD
Helena
vie. 10/31
6:13 pm-5:06 pm
2 stops20h 53m
Washington, D.C. Dulles Intl
dom. 11/2
6:11 pm-5:36 pm
1 stop25h 25m
HelenaWashington, D.C.
HLN - IAD
HLNIAD
Helena
mié. 7/9
2:34 pm-12:45 am
1 stop8h 11m
Washington, D.C. Dulles Intl
jue. 7/10
10:10 am-4:55 pm
1 stop8h 45m
HelenaWashington, D.C.
HLN - DCA
HLNDCA
Helena
vie. 10/31
2:22 pm-2:56 pm
1 stop22h 34m
Washington, D.C. Reagan-National
dom. 11/2
4:07 pm-9:22 pm
1 stop7h 15m
HelenaWashington, D.C.
HLN - DCA
HLNDCA
Helena
sáb. 7/12
5:50 am-4:46 pm
1 stop8h 56m
Washington, D.C. Reagan-National
lun. 7/21
5:59 pm-10:47 pm
1 stop6h 48m
HelenaWashington, D.C.
HLN - IAD
HLNIAD
Helena
vie. 7/11
1:00 pm-11:42 pm
1 stop8h 42m
HelenaWashington, D.C.
HLN - DCA
HLNDCA
Helena
sáb. 7/26
5:50 am-4:46 pm
1 stop8h 56m
HelenaWashington, D.C.
HLN - IAD
HLNIAD
Helena
mar. 7/8
4:09 pm-6:50 am
2 stops12h 41m
HelenaWashington, D.C.
HLN - DCA
HLNDCA
Helena
dom. 7/13
4:09 pm-8:59 pm
2 stops26h 50m
Best time to book a flight from Helena to District of Columbia
Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Helena with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Helena to District of Columbia
What is the cheapest month to book a flight from Helena to District of Columbia?
Currently, August is the cheapest month in which you can book a flight from Helena to District of Columbia (average of $241). Flying from Helena to District of Columbia in March is currently the most expensive (average of $290). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from HLN to DC?
Find hourly flight availability from Helena to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Helena to District of Columbia as you normally would.
Rainfall in District of Columbia by month
Plan your trip to District of Columbia by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.
Temperature in District of Columbia by month
Plan your trip to District of Columbia by taking into account the average temperature totals by month.
If weather is an important factor for your trip to District of Columbia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).
Reviews of airlines servicing District of Columbia
Get insights into the airlines that provide service to District of Columbia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to District of Columbia. Reviews last updated junio 12, 2025.
Read through reviews of airlines operating flights from Helena to District of Columbia, such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Overall
Entertainment
Food
Boarding
Comfort
Crew
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from Helena to District of Columbia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Helena to District of Columbia
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Helena to District of Columbia
Discover the top 2 airlines that operate flights from Helena to District of Columbia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated junio 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$256 | Average$752 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$344 | Average$434 | FlexibilityNo cancel fee | On-time69% |