$98 Find Cheap Flights from St. Louis to Portland - Compare and Save

These are the earliest and latest flight times available from St. Louis to Portland:

• Earliest: departs at 6:08 pm and lands at 10:20 pm
• Latest: departs at 6:08 pm and lands at 10:20 pm.

The flight takes about 4h 12m.

Three cabin classes are available on flights from St. Louis to Portland:

• Economy Class
• Business Class
• First Class

A nonstop flight from St. Louis to Portland takes 4h 12m, covering 1,702 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID or another TSA-accepted form of identification.

Round-trip flights from St. Louis to Portland range from $291 to $468, with an average of $368 over the past 12 months. Anything below $291 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 45% above the $368 route average. Book 16 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $279 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $402 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $45–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737 variants.

Alaska Airlines is the only airline on the St. Louis to Portland route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from St. Louis to Portland are currently lower than usual. Average one-way flight prices are about $126, which is 43% below the typical average for this route.

Portland Airport (PDX) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:

• Thrifty
• Dollar
• Hertz
• Sixt
• Payless

Flights from St. Louis to Portland usually depart from Lambert-St Louis (STL) and arrive at Portland (PDX).

One-stop flights from St. Louis to Portland most commonly connect through:

• Denver Intl (DEN) - 36% of one-stop connections
• Salt Lake City (SLC) - 22% of one-stop connections
• Chicago O'Hare Intl (ORD) - 13% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 8% of one-stop connections

Yes. Flexible dates can save you up to 17% on flights from St. Louis to Portland. Friday is the cheapest departure day at $338 round-trip on average, while Monday is the most expensive at $404, a difference of $66.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Only Alaska Airlines operates flights between St. Louis and Portland.

Flying via Salt Lake City (SLC) gives the shortest average 1-stop total travel time at 6h 09m, compared with 6h 47m via Sacramento Intl (SMF) and 6h 56m via Minneapolis St Paul (MSP).

Portland is 2 hours behind St. Louis (Pacific Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Portland are Moda Center, Oregon Convention Center and Arlene Schnitzer Concert Hall. These are among the most viewed places in Portland on KAYAK.

Among airlines operating St. Louis to Portland flights:

• Alaska Airlines: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy Class
• Southwest: a cabin bag in Economy Class class
• Hawaiian Airlines: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

The easiest way to get downtown is by taking the light rail. PDX is connected to the city by the MAX light rail system, and the Red Line trains depart every 15min. You can also take the shuttle from PDX with several companies offering door-to-door and inter-city shuttle services from PDX. Taxis are also available on the lower roadway around baggage claim, and no reservations are needed. Car rentals are available too, and most companies provide shuttle services from the baggage claim area to the offsite car rental station on the lower roadway.

The airport has provided elevators and ramps for passengers in wheelchairs. People with limited mobility also get reserved parking spots, accessible restrooms, fast track services, and dedicated seating areas. Aira services are available for low-vision passengers traveling through PDX. They will also be allowed guide dogs, and braille signage, audio announcements, and tactile guide paths are provided to guide them through PDX. Visual paging is available for the hard of hearing, and TDD telephones are also present at PDX.

Alaska Airlines, United Airlines, and Delta have lounges at PDX. Delta runs the only members-only lounge at PDX, while the other two options you can access by paying at the door. To access these lounges, you must show your flight ticket and pay a one-time fee. The Delta lounge is on Concourse D airside, Alaska lounge is on Concourse C airside, and United Club is on Concourse E airside. The airport also has a USO lounge for active US military members landside on the mezzanine level.

PDX offers nursing rooms for mothers who are traveling with infants. The nursing rooms provide comfortable seating, fold-down tables, and power outlets. The PDX nursing facilities are airside near the south lobby and around Gate D2. The airport has also provided a children’s play area for passengers with older kids. The PDX play areas are two, and they are both airside around Gates C17 and D7.