Cheap flights from San Antonio to Portland from $82
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Portland departing on 7/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Antonio to Portland
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Frontier flights from San Antonio to Portland
Our best Frontier deals on San Antonio to Portland flight tickets
Spirit Airlines flights from San Antonio to Portland
Our best Spirit Airlines deals on San Antonio to Portland flight tickets
See travel insights to Portland from
How to get the cheapest flight ticket from San Antonio to Portland
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Portland?
The cheapest month to fly to Portland from San Antonio is in September. Flight prices, which tend to average around $302, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until May to fly from San Antonio, when ticket prices are also cheap, with an average price of $314.
What is the cheapest day to depart on your flight to Portland?
The cheapest day to depart on your flight to Portland is on a Saturday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $402.
What is the cheapest time of day to depart on your flight to Portland?
The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $366. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $404 per ticket.
How far in advance should I book a flight to Portland?
You are more likely to see cheaper flights to Portland from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $360 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from San Antonio for as low as $307 on momondo.
What is the cheapest airline that flies from San Antonio to Portland?
Frontier, American Airlines, and Alaska Airlines are the most popular carriers operating from San Antonio to Portland
What airlines fly to Portland?
Alaska Airlines, American Airlines and Delta are the top three most popular airlines that fly to Portland from San Antonio according to our data. Alaska Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 8 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.
When to book flights from San Antonio to Portland
Cheap San Antonio to Portland (SAT to PDX) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to Portland
How far is San Antonio to Portland by plane?
Portland is 1717.5 mi away from San Antonio. Typically, this will take 5h 55m by plane in normal conditions.
When did momondo last update prices for flights from San Antonio Airport to Portland Airport?
Prices for flights from San Antonio Airport to Portland Airport are refreshed on a daily basis.
How many operators does momondo search for flights from San Antonio Airport to Portland Airport?
As of July 2025, there are 7 operators available to choose from for flights from San Antonio Airport to Portland Airport.
How old do you have to be to fly from San Antonio Airport to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Antonio to Portland?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Antonio to Portland is Southwest (24% of total bookings). The next most popular airlines are American Airlines (22%), Delta (21%), and Spirit Airlines (14%).
Best airlines flying from San Antonio to Portland
Compare and see reviews for airlines that fly from San Antonio to Portland with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $110 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $120 | Free Cancellation | Rating 5.9 3,268 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $266 | Free Cancellation | Rating 8.0 7,958 reviews | |||
| PriceFrom $277 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $293 | Free Cancellation | Rating 7.4 8,843 reviews | |||
| PriceFrom $327 | Free Cancellation | Rating 8.0 4,253 reviews |
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from San Antonio to Portland?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Portland. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from San Antonio to Portland with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for San Antonio to Portland flights to just show those with flexible booking policies.
How can momondo help me find flights from San Antonio to Portland?
momondo provides multiple filters to help you find the best flight to Portland from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from San Antonio to Portland right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to Portland from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.