$523 Cheap Flights from Phoenix (PHX) to San Sebastian (EAS)

View $523 flight on Tue, Oct 14, 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 $523 for one-way flights and $740 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, Nov 3 - Mon, Nov 17
PHX
Phoenix
EAS
San Sebastián
$740 Roundtrip, found 20 hours ago
$740
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Nov 3 from Phoenix to San Sebastián, returning Mon, Nov 17, priced at $740 found 20 hours ago
British Airways
Mon, Nov 3 - Mon, Nov 17
PHX
Phoenix
EAS
San Sebastián
$749 Roundtrip, found 20 hours ago
$749
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Nov 3 from Phoenix to San Sebastián, returning Mon, Nov 17, priced at $749 found 20 hours ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$756 Roundtrip, found 6 days ago
$756
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $756 found 6 days ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$766 Roundtrip, found 6 days ago
$766
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $766 found 6 days ago
Iberia
Thu, Oct 23 - Thu, Oct 30
PHX
Phoenix
EAS
San Sebastián
$767 Roundtrip, found 6 days ago
$767
Roundtrip
found 6 days ago
Select Iberia flight, departing Thu, Oct 23 from Phoenix to San Sebastián, returning Thu, Oct 30, priced at $767 found 6 days ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$781 Roundtrip, found 6 days ago
$781
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $781 found 6 days ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$788 Roundtrip, found 6 days ago
$788
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $788 found 6 days ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$791 Roundtrip, found 6 days ago
$791
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $791 found 6 days ago
American Airlines
Tue, Oct 14 - Sat, Oct 25
PHX
Phoenix
EAS
San Sebastián
$797 Roundtrip, found 6 days ago
$797
Roundtrip
found 6 days ago
Select American Airlines flight, departing Tue, Oct 14 from Phoenix to San Sebastián, returning Sat, Oct 25, priced at $797 found 6 days ago
Finnair
Wed, Mar 11 - Thu, Mar 19
PHX
Phoenix
EAS
San Sebastián
$1,037 Roundtrip, found 18 hours ago
$1,037
Roundtrip
found 18 hours ago
Select Finnair flight, departing Wed, Mar 11 from Phoenix to San Sebastián, returning Thu, Mar 19, priced at $1,037 found 18 hours ago

Frequently asked questions

How much does a flight from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) cost?
Get a cheap one-way flight from $523 or cheap return flight from $740 from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS)?
Flying in November may help you find better deals, as it's the cheapest month for flights between PHX and EAS. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Sky Harbor Intl. Airport (PHX) to San Sebastian Airport (EAS)?
To find the cheapest airline that'll fly you from PHX to EAS, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
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.

Travel information

Travel information

Origin airport
Sky Harbor Intl.
Destination airport
San Sebastian
Airlines serving
American Airlines, Iberia
Roundtrip price
$740
Distance
5547 mi

Book with confidence

Book with confidence

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 $523 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.

 

Phoenix to San Sebastian Flights

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*Available to One Key members.