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Cheap flights from Charleston to San Sebastian from $970

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Charleston to San Sebastian departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Charleston to San Sebastian

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
1:17 pm - 4:10 pmCHS  Charleston-EAS San Sebastián
20h 53m2 stops Philadelphia London Heathrow
British Airways Logo
1:40 pm - 11:59 pmEAS  San Sebastián-CHS Charleston
16h 19m2 stops Madrid Barajas Miami
$970British Airways
Sat, Oct 10 - Wed, Oct 21
British Airways Logo
7:53 pm - 1:00 pmCHS  Charleston-EAS San Sebastián
35h 07m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:30 pm - 10:00 pmEAS  San Sebastián-CHS Charleston
30h 30m2 stops Madrid Barajas Charlotte Douglas
$1,075British Airways
Sun, Dec 6 - Thu, Dec 10
British Airways Logo
7:53 pm - 1:00 pmCHS  Charleston-EAS San Sebastián
35h 07m2 stops Charlotte Douglas Madrid Barajas
British Airways Logo
9:30 pm - 10:00 pmEAS  San Sebastián-CHS Charleston
30h 30m2 stops Madrid Barajas Charlotte Douglas
$1,076British Airways
Sun, Dec 6 - Thu, Dec 10
Multiple Airlines Logo
1:05 pm - 8:20 amCHS  Charleston-EAS San Sebastián
37h 15m2 stops Boston Logan Intl Barcelona-El Prat
Multiple Airlines Logo
8:55 am - 7:47 pmEAS  San Sebastián-CHS Charleston
16h 52m2 stops Barcelona-El Prat Philadelphia
$1,194Multiple Airlines
Wed, Sep 2 - Wed, Sep 9

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British Airways flights from Charleston to San Sebastian

Our best British Airways deals on Charleston to San Sebastian flight tickets
British Airways
Oct 10
CHS1:17 pmCharleston
20h 53m
2 stops
EAS4:10 pmSan Sebastián
Oct 21
EAS1:40 pmSan Sebastián
16h 19m
2 stops
CHS11:59 pmCharleston
$970
British Airways
Dec 6
CHS7:53 pmCharleston
35h 07m
2 stops
EAS1:00 pmSan Sebastián
Dec 10
EAS9:30 pmSan Sebastián
30h 30m
2 stops
CHS10:00 pmCharleston
$1,075
British Airways
Dec 6
CHS7:53 pmCharleston
35h 07m
2 stops
EAS1:00 pmSan Sebastián
Dec 10
EAS9:30 pmSan Sebastián
30h 30m
2 stops
CHS10:00 pmCharleston
$1,076

momondo Fare Finder

 
Customize your flight search to find flights from Charleston 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, momondo users made 832,500 searches. Data last updated August 5, 2026.
Use the filters below to find and compare flights from Charleston to San Sebastian that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

CharlestonSan Sebastian

CHS Charleston - EAS San Sebastián

CHSEAS

Charleston

Sat 10/10

1:17 pm-4:10 pm

2 stops20h 53m

San Sebastián

Wed 10/21

1:40 pm-11:59 pm

2 stops16h 19m

$970

CharlestonSan Sebastian

CHS Charleston - EAS San Sebastián

CHSEAS

Charleston

Sun 12/6

7:53 pm-1:00 pm

2 stops35h 07m

San Sebastián

Thu 12/10

9:30 pm-10:00 pm

2 stops30h 30m

$1,075

CharlestonSan Sebastian

CHS Charleston - EAS San Sebastián

CHSEAS

Charleston

Sun 12/6

7:53 pm-1:00 pm

2 stops35h 07m

San Sebastián

Thu 12/10

9:30 pm-10:00 pm

2 stops30h 30m

$1,076

CharlestonSan Sebastian

CHS Charleston - EAS San Sebastián

CHSEAS

Charleston

Wed 9/2

1:05 pm-8:20 am

2 stops37h 15m

San Sebastián

Wed 9/9

8:55 am-7:47 pm

2 stops16h 52m

$1,194

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

When to book flights from Charleston to San Sebastian

Are you open to changing your travel dates? Check out the ideal times to fly from Charleston to San Sebastian according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Charleston to San Sebastian (CHS to EAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Charleston to San Sebastian

Fastest flight time

35h 07m

Direct flights

None
The fastest flight from Charleston to San Sebastian takes 35h 07m
There are no direct flights from Charleston to San Sebastian. There are no popular flight routes from Charleston to San Sebastian.
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Frequently asked questions about flying from Charleston to San Sebastian

  • How far is Charleston to San Sebastián by plane?

    There are 4147.2 mi between Charleston and San Sebastián. In terms of flight time, this usually takes a little over 35h 07m.

  • When did momondo last update prices for flights from Charleston Airport to San Sebastián Airport?

    Prices for flights from Charleston Airport to San Sebastián Airport were last updated today.

  • How old do you have to be to fly from Charleston Airport to San Sebastián Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Charleston Airport to San Sebastián Airport.

  • What documentation or ID do you need to fly to San Sebastián Airport?

    The travel and health documents you'll need for your trip to San Sebastián Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Sebastián Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Frequently asked questions about flying from Charleston to San Sebastian

  • How do I get Price Alerts for flights from Charleston to San Sebastian?

    Confirm your travel details to search for the latest offers for flights from Charleston to San Sebastian. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Charleston to San Sebastian with momondo?

    By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Traveling to a place near San Sebastian?

Book flights to San Sebastian if you plan to visit one of these locations
Irun
Hondarribia

Why use momondo?

Why should I use momondo to find a flight deal from Charleston to San Sebastian?

Finding the right flight to San Sebastian from Charleston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Sebastian quick and easy, saving you time and money.

Can I find flights from Charleston to San Sebastian with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to San Sebastian from Charleston with this policy.

How can momondo help me find flights from Charleston to San Sebastian?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Charleston to San Sebastian.

I’m not ready to book a flight from Charleston to San Sebastian right now. Can momondo alert me if prices change?

If you are simply researching potential flights to San Sebastian, momondo offers a useful price alert feature which will track prices for flights to San Sebastian from Charleston and alert you when they change.

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Fri 9/4
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