$522 Cheap Flights from Phoenix (PHX) to San Sebastian (EAS)

View $522 flight on Mon, Aug 18, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to San Sebastian (EAS)

Cheap Flights from Phoenix to San Sebastian (PHX-EAS)

Prices were available within the past 7 days and start at $522 for one-way flights and $609 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Nov 4 - Thu, Nov 13
PHX
Phoenix
EAS
San Sebastián
$609 Roundtrip, found 3 days ago
$609
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 4 from Phoenix to San Sebastián, returning Thu, Nov 13, priced at $609 found 3 days ago
American Airlines
Thu, Sep 25 - Thu, Oct 2
PHX
Phoenix
EAS
San Sebastián
$631 Roundtrip, found 3 days ago
$631
Roundtrip
found 3 days ago
Select American Airlines flight, departing Thu, Sep 25 from Phoenix to San Sebastián, returning Thu, Oct 2, priced at $631 found 3 days ago
American Airlines
Sat, Nov 8 - Thu, Nov 13
PHX
Phoenix
EAS
San Sebastián
$659 Roundtrip, found 3 days ago
$659
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Nov 8 from Phoenix to San Sebastián, returning Thu, Nov 13, priced at $659 found 3 days ago
British Airways
Mon, Aug 4 - Mon, Aug 11
PHX
Phoenix
EAS
San Sebastián
$676 Roundtrip, found 3 days ago
$676
Roundtrip
found 3 days ago
Select British Airways flight, departing Mon, Aug 4 from Phoenix to San Sebastián, returning Mon, Aug 11, priced at $676 found 3 days ago
Iberia
Mon, Aug 4 - Mon, Aug 11
PHX
Phoenix
EAS
San Sebastián
$676 Roundtrip, found 3 days ago
$676
Roundtrip
found 3 days ago
Select Iberia flight, departing Mon, Aug 4 from Phoenix to San Sebastián, returning Mon, Aug 11, priced at $676 found 3 days ago
British Airways
Mon, Mar 2 - Wed, Mar 11
PHX
Phoenix
EAS
San Sebastián
$680 Roundtrip, found 5 days ago
$680
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Mar 2 from Phoenix to San Sebastián, returning Wed, Mar 11, priced at $680 found 5 days ago
American Airlines
Mon, Mar 2 - Wed, Mar 11
PHX
Phoenix
EAS
San Sebastián
$680 Roundtrip, found 5 days ago
$680
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Mar 2 from Phoenix to San Sebastián, returning Wed, Mar 11, priced at $680 found 5 days ago
American Airlines
Tue, Nov 4 - Mon, Nov 10
PHX
Phoenix
EAS
San Sebastián
$684 Roundtrip, found 3 days ago
$684
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Nov 4 from Phoenix to San Sebastián, returning Mon, Nov 10, priced at $684 found 3 days ago
American Airlines
Mon, Mar 2 - Wed, Mar 11
PHX
Phoenix
EAS
San Sebastián
$686 Roundtrip, found 5 days ago
$686
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Mar 2 from Phoenix to San Sebastián, returning Wed, Mar 11, priced at $686 found 5 days ago
British Airways
Mon, Mar 2 - Wed, Mar 11
PHX
Phoenix
EAS
San Sebastián
$693 Roundtrip, found 5 days ago
$693
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Mar 2 from Phoenix to San Sebastián, returning Wed, Mar 11, priced at $693 found 5 days ago
Flights from Phoenix (PHX) to San Sebastian (EAS)
Origin airport
Sky Harbor Intl.
Destination airport
San Sebastian
Airlines serving
American Airlines, Iberia
Roundtrip price
$609
Distance
5547 mi

Phoenix to San Sebastian Flights

The cheapest times to fly from Phoenix to San Sebastian

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Phoenix to San Sebastian are during the month of November. You can find some of the cheapest flights from Phoenix to San Sebastian with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to San Sebastian

Sunday is one of the best days to book for cheap flights from Phoenix to San Sebastian: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Phoenix to San Sebastian

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Phoenix to San Sebastian in 2025. You can also book with separate airlines for your outbound and return journeys, from $522 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Phoenix to San Sebastian flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Phoenix to San Sebastian airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) cost?
Discover the latest flight deals from PHX to EAS by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PHX to EAS?
The cheapest flights from PHX to EAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PHX to EAS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PHX to EAS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS)?
Nonstop flights from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to EAS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can vary based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS)?
To avoid possible delays on the Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) route, fly before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) last-minute?
Waiting until right before your break to book a flight from PHX to EAS often results in higher prices. While you might find some last-minute discounts, there's no guarantee. Be flexible with your travel plans for a better chance of getting a bargain.
Is it cheaper to book a PHX to EAS flight and hotel package?
You can save money by booking a PHX to EAS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. After selecting your ideal flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS)?
It's usually possible to reschedule or cancel your PHX to EAS flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.