$366+ Cheap flights from Newark (EWR) to San Sebastian (EAS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
EWR — EAS
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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Find cheap flights from Newark to San Sebastian with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Newark to San Sebastian
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Cheapest flights from Newark to San SebastianExplore the most affordable flight options available from Newark to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
Explore the most affordable flight options available from Newark to San Sebastian. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Tue 10/271:40 pm -
2 stops31h 40m
Deal found 9/3![Multiple Airlines logo]()
$836
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 pm -
3 stops32h 50m
Tue 10/205:55 pm -
3 stops33h 15m
Deal found 9/3![Multiple Airlines logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:55 pm -
1 stop26h 45m
Sat 11/72:10 pm -
2 stops36h 50m
Deal found 9/6![Multiple Airlines logo]()
$853
This Mytrip deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:35 pm -
3 stops36h 00m
Mon 11/162:10 pm -
2 stops31h 10m
Deal found 9/6![Multiple Airlines logo]()
$860
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 pm -
1 stop14h 55m
Tue 10/209:30 pm -
2 stops24h 00m
Deal found 9/3![Multiple Airlines logo]()
$876
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:20 pm -
3 stops33h 00m
Sat 10/38:55 am -
3 stops34h 20m
Deal found 9/3![Multiple Airlines logo]()
$877
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Mon 10/269:20 am -
2 stops18h 50m
Deal found 9/3![Multiple Airlines logo]()
$878
This Mytrip deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:45 pm -
3 stops32h 35m
Wed 10/215:55 pm -
3 stops27h 04m
Deal found 9/4![Multiple Airlines logo]()
$886
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Wed 10/289:30 pm -
2 stops23h 50m
Deal found 9/4![Multiple Airlines logo]()
$894
Best flights from Newark to San SebastianDiscover carefully curated flight deals from Newark to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Newark to San Sebastian that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Mon 10/269:20 am -
2 stops18h 50m
Deal found 9/4![Multiple Airlines logo]()
$878
This Expedia deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:55 pm -
1 stop26h 45m
Thu 10/89:20 am -
1 stop19h 05m
Deal found 9/3![Iberia logo]()
$1,017
This Finnair deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:55 pm -
1 stop26h 45m
Wed 10/219:20 am -
1 stop19h 05m
Deal found 9/6![Finnair logo]()
$1,217
This Kissandfly.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/221:21 pm -
3 stops36h 59m
Sat 11/79:20 am -
2 stops18h 50m
Deal found 9/4![Multiple Airlines logo]()
$896
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:45 pm -
2 stops13h 35m
Thu 10/89:10 am -
2 stops19h 20m
Deal found 9/3![Multiple Airlines logo]()
$921
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
1 stop14h 55m
Tue 10/279:30 pm -
2 stops23h 50m
Deal found 9/4![Multiple Airlines logo]()
$927
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:45 pm -
3 stops19h 35m
Sat 10/35:55 pm -
2 stops33h 05m
Deal found 9/3![Multiple Airlines logo]()
$1,015
This Finnair deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 pm -
1 stop14h 55m
Tue 10/209:20 am -
1 stop19h 05m
Deal found 9/6![Multiple Airlines logo]()
$1,072
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1111:55 pm -
1 stop26h 45m
Sun 10/189:20 am -
2 stops31h 10m
Deal found 9/4![Multiple Airlines logo]()
$1,102
This Mytrip deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:00 pm -
2 stops27h 20m
Sat 10/175:55 pm -
3 stops31h 05m
Deal found 9/4![Multiple Airlines logo]()
$1,140
Last-minute flights from Newark to San SebastianDiscover last-minute flight deals from Newark to San Sebastian. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Newark to San Sebastian. Data last updated September 7, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/275:20 pm -
3 stops33h 00m
Sat 10/38:55 am -
3 stops34h 20m
Deal found 9/3![Multiple Airlines logo]()
$877
This Mytrip deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 pm -
3 stops32h 50m
Tue 10/205:55 pm -
3 stops33h 15m
Deal found 9/3![Multiple Airlines logo]()
$850
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:55 pm -
1 stop14h 55m
Tue 10/131:40 pm -
1 stop14h 45m
Deal found 9/6![Iberia logo]()
$904
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 pm -
1 stop14h 55m
Tue 10/209:30 pm -
2 stops24h 00m
Deal found 9/3![Multiple Airlines logo]()
$876
This Mytrip deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:45 pm -
3 stops32h 35m
Wed 10/215:55 pm -
3 stops27h 04m
Deal found 9/4![Multiple Airlines logo]()
$886
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Tue 10/271:40 pm -
2 stops31h 40m
Deal found 9/3![Multiple Airlines logo]()
$836
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Mon 10/269:20 am -
2 stops18h 50m
Deal found 9/3![Multiple Airlines logo]()
$878
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:55 pm -
1 stop14h 55m
Wed 10/289:30 pm -
2 stops23h 50m
Deal found 9/4![Multiple Airlines logo]()
$894
This Kiwi.com deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2211:55 pm -
1 stop26h 45m
Sat 11/72:10 pm -
2 stops36h 50m
Deal found 9/6![Multiple Airlines logo]()
$853
One-way flights from Newark to San SebastianSearch for one-way flight options from Newark to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Newark to San Sebastian. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
2 stops26h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:55 pm -
1 stop26h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Iberia logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2011:00 pm -
2 stops51h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$821
This BusinessClass deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/205:50 pm -
1 stop12h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Iberia logo]()
$1,214
Find flight deals from Newark to San Sebastian
Discover tips and strategies to find the most affordable flight options for your journey from Newark (EWR) to San Sebastian (EAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $836 (Kiwi.com) |
One-way from | $366 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Newark to San Sebastian that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 7, 2026.
Use the filters below to find and compare flights from Newark Airport to San Sebastian that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Tue 10/20
11:55 pm-8:35 am
2 stops26h 40m
San Sebastián
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$366
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Tue 10/20
11:55 pm-8:40 am
1 stop26h 45m
San Sebastián
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$374
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Sun 9/20
11:00 pm-8:20 am
2 stops51h 20m
San Sebastián
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$821
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Mon 10/19
11:55 pm-8:50 pm
1 stop14h 55m
San Sebastián
Mon 10/26
9:20 am-11:10 pm
2 stops18h 50m
$878
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Thu 10/22
1:21 pm-8:20 am
3 stops36h 59m
San Sebastián
Sat 11/7
9:20 am-10:10 pm
2 stops18h 50m
$896
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Thu 10/1
9:45 pm-5:20 pm
2 stops13h 35m
San Sebastián
Thu 10/8
9:10 am-10:30 pm
2 stops19h 20m
$921
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Tue 10/20
11:55 pm-8:50 pm
1 stop14h 55m
San Sebastián
Tue 10/27
9:30 pm-4:20 pm
2 stops23h 50m
$927
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Sun 9/27
3:45 pm-5:20 pm
3 stops19h 35m
San Sebastián
Sat 10/3
5:55 pm-9:00 pm
2 stops33h 05m
$1,015
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Thu 10/1
11:55 pm-8:40 am
1 stop26h 45m
San Sebastián
Thu 10/8
9:20 am-10:25 pm
1 stop19h 05m
$1,017
NewarkSan Sebastian
EWR Newark - EAS San Sebastián
EWREAS
Newark
Tue 10/13
11:55 pm-8:50 pm
1 stop14h 55m
San Sebastián
Tue 10/20
9:20 am-10:25 pm
1 stop19h 05m
$1,072
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Newark to San Sebastian
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Newark to San Sebastian in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Newark Airport-San Sebastian flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Newark Airport-San Sebastian flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Newark Airport-San Sebastian flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Newark Airport-San Sebastian flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Newark Airport-San Sebastian flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Newark to San Sebastian
Have a flexible travel schedule? Discover the best time to fly to San Sebastian from Newark with our price prediction graph.
EWR-EAS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Newark to San Sebastian. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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