Latest Flight Deals from Portland to St. Louis
Book one-way or return flights from Portland to St. Louis from as little as £47. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- PDX00:5912h 51m1 stopSTL15:50Tue, Apr 30|Portland - St. Louis|Frontier Airlines£47£9450% OFF50% OFF£94£47
- PDX00:496h 58m1 stopSTL09:47Sat, May 4|Portland - St. Louis|Frontier Airlines£48£9449% OFF49% OFF£94£48
- PDX00:5912h 51m1 stopSTL15:50Tue, May 7|Portland - St. Louis|Frontier Airlines£53£9444% OFF44% OFF£94£53
- PDX13:5912h 9m1 stopSTL04:08Wed, May 8|Portland - St. Louis|Spirit Airlines£55£55
- PDX00:596h 48m1 stopSTL09:47Wed, May 8|Portland - St. Louis|Frontier Airlines£56£56
- PDX00:596h 48m1 stopSTL09:47Wed, May 15|Portland - St. Louis|Frontier Airlines£58£58
- PDX18:5113h 22m1 stopSTL10:13Mon, May 20|Portland - St. Louis|Spirit Airlines£67£67
- PDX10:1022h 8m1 stopSTL10:18Mon, May 6|Portland - St. Louis|Frontier Airlines£68£68
- PDX10:1522h 3m1 stopSTL10:18Sun, May 12|Portland - St. Louis|Frontier Airlines£68£68
- PDX00:5912h 51m1 stopSTL15:50Tue, May 14|Portland - St. Louis|Frontier Airlines£68£68
- PDX13:003h 5mDirectSTL14:00Mon, May 6|Portland - St. Louis|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
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Find more flights and airlines
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Portland to St. Louis.
- CheapestPDX00:5912h 51m1 transferSTL15:50Portland International Airport - St. Louis Lambert International AirportTue, Apr 30Frontier Airlines£47
- PDX00:5912h 51m1 transferSTL15:50Portland International Airport - St. Louis Lambert International AirportTue, Apr 30Frontier Airlines£47Find More Flights
How do I find the cheapest flights?
How to find a cheap flight from Portland to St. Louis
Cheapest direct flight price | £46 |
---|---|
Cheapest month | April |
Peak season for travel | October |
Flight distance | 2,763.15km |
Popular airline | Alaska Airlines |
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