Cheap flights from St. Louis, MO to Portland, OR
Flights starting at £46. Choose between Alaska Airlines, Frontier Airlines, or United Airlines to find the best price.
Make your travel wishlist, we'll do the rest
Hidden deals
Kiwi-Code uncovers prices airlines don't want you to see.
Effortless booking
Use our flexible filters to tailor your search.
Travel hacking
Look out for the travel hack star icon for even cheaper fares.
Tips to know when travelling to Portland
Cheapest one-way trip | £153 |
|---|---|
Cheapest round-trip | £270 |
Nonstop flights in April | £229 – £229 |
Most popular airline | Alaska Airlines |
Search by stops
Search by carrier
Search by price
Search by departure date
One-way trips
Updated:
Round trips
Updated:
Looking for a different city?
Receive exclusive deals by email
By subscribing you agree to receive offers according to the conditions described in our Privacy Policy.
The distance between St. Louis and Portland is 2745 km. The most popular airlines for this route are Alaska Airlines, Frontier Airlines, United Airlines, Spirit Airlines, and Southern Airways Express. St. Louis and Portland have 168 direct flights per week.
Weekly direct flights
Discover the top airlines offering direct flights from St. Louis to Portland in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Mon 15.04 - Sun 21.04
| Airline | Mon 15.04 | Tue 16.04 | Wed 17.04 | Thu 18.04 | Fri 19.04 | Sat 20.04 | Sun 21.04 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Mon 22.04 - Sun 28.04
| Airline | Mon 22.04 | Tue 23.04 | Wed 24.04 | Thu 25.04 | Fri 26.04 | Sat 27.04 | Sun 28.04 |
|---|---|---|---|---|---|---|---|
| 1 | --- | --- | 1 | --- | --- | 1 |
Weekly direct flights for Mon 29.04 - Sun 05.05
| Airline | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 | Sun 05.05 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Mon 06.05 - Sun 12.05
| Airline | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 | Sun 12.05 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | --- | --- | --- |
Check-in for a flight from St. Louis to Portland
| Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
|---|---|---|---|---|
| Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
| Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
| United Airlines | UAL | UA | Yes | No |
| Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
| Southern Airways Express | FDY | 9X | Yes | No |
Weather in Portland
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 8°C | 2°C |
| February | 8°C | 2°C |
| March | 11°C | 3°C |
| April | 14°C | 5°C |
| May | 19°C | 8°C |
| June | 23°C | 10°C |
| July | 28°C | 13°C |
| August | 28°C | 14°C |
| September | 24°C | 12°C |
| October | 17°C | 8°C |
| November | 10°C | 4°C |
| December | 7°C | 2°C |
14 day forecast
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from St. Louis
- Flights from St. Louis to London
- Flights from St. Louis to Manchester
- Flights from St. Louis to Las Vegas
- Flights from St. Louis to Dublin
- Flights from St. Louis to San Jose
- Flights from St. Louis to Orlando
- Flights from St. Louis to Tampa
- Flights from St. Louis to San Francisco
- Flights from St. Louis to Washington, D.C.
- Flights from St. Louis to Glasgow
- Flights from St. Louis to Houston
- Flights from St. Louis to Minneapolis
- Flights from St. Louis to Detroit
- Flights from St. Louis to Los Angeles
- Flights from St. Louis to Raleigh
- Flights from St. Louis to Seattle
- Flights from St. Louis to Atlanta
- Flights from St. Louis to Guayaquil
- Flights from St. Louis to Edmonton
- Flights from St. Louis to Vilnius
Flights to Portland
- Flights from London to Portland
- Flights from Dublin to Portland
- Flights from San Francisco to Portland
- Flights from Edinburgh to Portland
- Flights from Bangkok to Portland
- Flights from Las Vegas to Portland
- Flights from Madrid to Portland
- Flights from Denver to Portland
- Flights from Melbourne to Portland
- Flights from Barcelona to Portland
- Flights from Phoenix to Portland
- Flights from Lisbon to Portland
- Flights from Berlin to Portland
- Flights from Manchester to Portland
- Flights from Austin to Portland
- Flights from Paris to Portland
- Flights from Amsterdam to Portland
- Flights from Taipei to Portland
- Flights from Los Angeles to Portland
- Flights from Atlanta to Portland
Popular routes
- Flights from Bengaluru to Medellín
- Flights from Singapore to Jakarta
- Flights from Chennai to Cincinnati
- Flights from Lima to Lagos
- Flights from Lagos to Lima
- Flights from Amman to Fort Lauderdale
- Flights from Rio de Janeiro to Detroit
- Flights from Fort Myers to Cairo
- Flights from Cairo to Fort Myers
- Flights from Nashville to Nairobi
- Flights from Nairobi to Nashville
- Flights from London to Athens
Airports near St. Louis
- St. Louis Lambert International
- General Wayne A. Downing Peoria International
- Abraham Lincoln Capital
- Evansville Regional
- Barkley Regional
- Central Illinois Regional
- Waynesville-St. Robert Regional
- MidAmerica St. Louis
- Cape Girardeau Regional
- Williamson County Regional