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Cheap Flights from St Louis to Portland, ME, United States - STL to PWM Last modified: May 31, 2016 1:52 AM

Popular flights from St Louis to Portland Last modified: May 31, 2016 1:52 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

American Airlines
Departure Date Return Date Lowest Price
Sep 7, 2016 Sep 13, 2016 $377
United Airlines
Departure Date Return Date Lowest Price
Sep 3, 2016 Sep 10, 2016 $360
Sep 7, 2016 Sep 13, 2016 $360
Sep 10, 2016 Sep 17, 2016 $360

How Much Does it Cost to Fly from St Louis to Portland (STL to PWM)?

We have collected flight cost data from across the web for travel from St Louis to Portland, and have found the average flight price for this trip to be $424.

When Can I Buy the Cheapest Flight from St Louis to Portland (STL to PWM)?

Airlines can adjust prices for plane tickets from St Louis to Portland based on the day and time that you decide to book your flight. We have collected data from all airlines, and have discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

Cheapest Day To Fly from St Louis to Portland

The chart below shows up-to-date information regarding the cheapest days to fly from St Louis to Portland.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$382 $402 $384 $372 $557 $411 $458
TIPSave $45 by flying into Boston instead of Portland from St Louis

Round Trip vs One Way Flights from St Louis to Portland (STL to PWM)

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Portland. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Portland is $442.

The average price for round trip flights from St Louis to Portland is $399.

St Louis to Portland Flight Questions

Below are some common questions that asked about this flight route:

Question: What are the most popular connecting cities when flying from St Louis to Portland?
Answer: Atlanta, GA

Airlines Flying from St Louis to Portland (STL to PWM) Number of flights searched: 104Last modified: May 31, 2016 1:52 AM

Below are the different airlines that fly from St Louis to Portland with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to Portland.

St Louis to Portland
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American DCA X X X X X X X
Delta ATL X X X X X X X
Delta MSP / LGA X X X X X X X
United ORD X X X X X X X
Southwest BWI X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Portland, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

Cheap Domestic Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Boston American, Alaska, United $351
St Louis to New York American, Alaska, United $235
St Louis to Manchester American, United $333
St Louis to Chicago American, Alaska, United $219
St Louis to Atlanta American, Alaska, Frontier, United $78
St Louis to Newark American, Alaska, United $235
St Louis to Hartford American, Alaska, United $250
St Louis to Bangor American, Alaska, United $372
St Louis to Providence American, Alaska, United $364
St Louis to Washington American, Alaska, United $203
St Louis to Philadelphia American, Alaska, United $331
St Louis to AugustaCheck Dates
St Louis to Baltimore American, Alaska, United $217
St Louis to Burlington American, Alaska, United $372
St Louis to Dallas - Ft Worth American, Alaska, United $209
St Louis to Albany American, Alaska, United $349
St Louis to Charlotte American, Alaska, United $349
St Louis to Detroit American, Alaska, United $222
St Louis to Long Island MacArthur American, Alaska, United $412
St Louis to Orlando American, Alaska, JetBlue, Frontier, United $128

Cheap International Flights from St Louis - STL

FlightsAirlineLowest Price
St Louis to Montreal Air Choice One, American, Air Canada, Alaska, Frontier, United, WestJet $302
St Louis to Toronto Air Choice One, American, Air Canada, Alaska, JetBlue, United, WestJet $344

Cheap Domestic Flights to Portland - PWM

FlightsAirlineLowest Price
Springfield to Boston American, Alaska, United $390
Moline to Boston American, United $244
Peoria to Boston American, United $244
Bloomington - Normal to Boston American $244
Evansville to New York American, United $365
Springfield to New York American, Alaska, United $366
Springfield to Chicago American, United $295
Springfield to Bangor American, United $570
Cheap Flights from St Louis to Portland, ME, United States, from $360 Round trip from STL to PWM