Most accurate provider | FlightHub 3 stars |
---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $395 (Delta) |
One-way from | $381 (United Airlines) |
Popular in | February |
Cheapest in | April |
Average price | $975 |
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Tue 7/29
10:19 pm-4:47 pm
1 stop20h 28m
Helena
Wed 8/6
2:04 pm-11:19 pm
1 stop7h 15m
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Mon 7/28
6:00 am-10:33 pm
2 stops18h 33m
Helena
Tue 8/5
1:03 pm-11:53 pm
1 stop8h 50m
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Thu 7/31
6:55 pm-3:43 pm
1 stop22h 48m
Helena
Tue 8/5
4:10 pm-3:00 pm
2 stops20h 50m
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Mon 5/12
10:10 pm-9:15 pm
3 stops25h 05m
Helena
Sat 5/17
4:11 pm-5:55 am
2 stops11h 44m
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Sun 3/16
8:30 am-1:40 pm
1 stop7h 10m
Washington, D.C.Helena
IAD - HLN
IADHLN
Washington, D.C. Dulles Intl
Sun 3/16
5:18 pm-3:42 pm
2 stops24h 24m
Provider | Price Accuracy | Trust Score* |
---|---|---|
Price Accuracy1 star | Trust Score*3 stars | |
Price Accuracy3 stars | Trust Score*3 stars |
Currently, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helena (average of $353). Flying from Washington, D.C. Dulles Intl Airport to Helena in July is currently the most expensive (average of $637). 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.
In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.
If weather is an important factor for your trip to Helena, 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 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).
Boarding
Overall
Comfort
Crew
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Overall
Comfort
Crew
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Overall
Comfort
Crew
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Boarding
Overall
Comfort
Crew
Food
Entertainment
Reviews
Cheri,Jan 2025
FAT - SEA
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$527 | Average$758 | FlexibilityNo cancel fee | On-time69% |