Cheap flights from St. Louis to Portland (STL - PWM) from $221

This is the cheapest one-way flight price, found on 6/1. Prices may vary by date and flight preferences.
STL — PWM
Jun 6 — Jun 131
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The best prices from Lambert-St Louis to Portland are usually found in February or April, booked 39 days in advance, depart on a Wednesday or Sunday and return on a Saturday

How to find the cheapest flight from St. Louis (STL) to Portland (PWM)

All the information you need to plan the best STL to PWM flight in 2023: compare St. Louis to Portland flight prices with the expected peak season, weather and rainfall in Portland.

Popular in

July

Cheapest in

February

Round-trip from

$317

One-way from

$248
High demand for flights, 17% potential price rise
Best time to find cheap flights, 22% potential price drop
From Lambert-St Louis to Portland
One-way flight from Lambert-St Louis to Portland

STL - PWM

Price

$317 - $557

PWM

Temperature

23 - 68 °F

PWM

Rainfall

2.9 - 4.5 inches

Cheap flights from St. Louis to Portland in June, July 2023

The best prices found for STL to PWM flights for June, July
Check out some of the best flight deals from St. Louis to Portland in 2023. Check back regularly for other flight deals.

St. Louis to Portland 2023 flight deals

Cheap flights to Portland from St. Louis found for this year
Check out some of the best flight deals from St. Louis to Portland in 2023. Check back regularly for other flight deals.

Cheap Delta flights from St. Louis to Portland

Find some of the cheapest Delta flights traveling from St. Louis to Portland. Make sure to double check the flight details before booking.

Cheap United Airlines flights from St. Louis to Portland

To aid your search, here are some of the cheapest United Airlines flights we've found from St. Louis to Portland. Deals frequently update to provide users with more options.

Last minute flights from St. Louis to Portland

Late deals on return flights to Portland from St. Louis, departing today and this week
Book one of these great deals on flights from St. Louis to Portland. It's wise to confirm all flight details are correct before booking.

One-way flights to Portland from St. Louis

The cheapest one-way flights from St. Louis to Portland
Some of the best available deals we've found on one-way flights from St. Louis to Portland. Users can also find round-trip St. Louis to Portland flights by using the search form above.

Find flights from St. Louis to Portland within your budget

Use the slider to find flights from St. Louis to Portland that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$383 - $485

Route

Depart

Return

Price

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 6/27

1 stop5h 20m

Portland

Tue 7/4

1 stop5h 23m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 9/2

1 stop6h 29m

Portland

Sat 9/9

1 stop25h 38m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Fri 9/29

1 stop7h 52m

Portland

Tue 10/3

1 stop7h 35m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Tue 6/27

1 stop5h 19m

Portland

Tue 7/4

2 stops15h 36m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sat 9/2

2 stops18h 28m

Portland

Sat 9/9

1 stop24h 42m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Sun 7/2

1 stop4h 53m

Portland

Thu 7/13

1 stop8h 17m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Thu 7/6

1 stop5h 56m

Portland

Sat 7/8

1 stop5h 23m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Thu 7/6

2 stops28h 01m

Portland

Sat 7/8

2 stops27h 58m

Lambert-St LouisPortland

STL - PWM

STLPWM

Lambert-St Louis

Fri 6/23

1 stop5h 04m

Portland

Tue 6/27

1 stop6h 21m

Flights are sorted by cheapest first

Deals found on 5/30

Reviews of Airlines Servicing Portland

Read reviews from past customers who have flown Delta, United Airlines and American Airlines from St. Louis to Portland. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Delta
8.0
Very good
2,370 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

United Airlines
7.6
Good
1,535 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

JetBlue
7.5
Good
609 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

American Airlines
7.3
Good
2,149 reviews
Delta
8.0
Very good
2,370 reviews

Crew

8.5

Boarding

8.1

Food

7.2

Comfort

7.9

Overall

8.0

Entertainment

7.8

Reviews

1 / 10

Flights were on time with no delays, luggage arrived with the flight. I know the flights were short, but the only drinks offered were water, tea and coffee. It would’ve been nice to have the option to choose a soda, especially since I was in comfort class. The snacks were very small.

Related info for your journey

Useful info, stats and facts about St. Louis to Portland flights.

Top 4 airlines flying from St. Louis to Portland

The chart below displays the airlines Cheapflights users traveling from St. Louis to Portland choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
United AirlinesCheapest$185Average$497FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
American AirlinesCheapest$264Average$472FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
DeltaCheapest$345Average$499FlexibilityNo cancel feeOn-timeN/ACOVID-19 safety
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JetBlueCheapest$463Average$465FlexibilityNo cancel feeOn-time62%COVID-19 safety
Search JetBlue flights