Cheap flights from Rapid City to Portland, ME (RAP - PWM)
RAP — PWM
Apr 12 — Apr 191
Round-trip
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Find flight deals from Rapid City to Portland
Discover tips and strategies to find the most affordable flight options for your journey from Rapid City (RAP) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 13, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
- Most accurate provider: When it comes to deals on Rapid City-Portland, Maine flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Rapid City-Portland, Maine flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Rapid City-Portland, Maine flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Rapid City-Portland, Maine flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Rapid City-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Rapid City to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Rapid City with our price prediction graph.
RAP-PWM
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated March 13, 2026.
Peruse reviews from past customers who have flown with United Airlines from Rapid City to Portland to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Overall
7.4
Comfort
7.3
Boarding
7.7
Entertainment
7.1
Crew
8.1
Food
6.6
Reviews
1 / 20
10.0
ExcellentDane,Jan 2026
TYS - IAD
Related info for your journey
Find useful and relevant information for your journey from Rapid City to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Brunswick
Auburn
Lewiston
Conway
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Top airline flying from Rapid City to Portland
Discover the top airline that operate flights from Rapid City to Portland. 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 March 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$220 | Average$569 | FlexibilityNo cancel fee | On-time69% |