Seattle (SEA) to Basel (BSL) at a glance

Embark on an international journey from Seattle (SEA) to Basel (BSL) with a range of airlines offering diverse options for this long-haul route. Whether you prefer full-service amenities or budget-friendly choices, you can compare flight itineraries to find the perfect match for your budget, schedule, and travel plans while exploring Basel's renowned attractions and neighborhoods. Here, you'll find essential details for flights departing from Seattle-Tacoma International Airport (SEA) to EuroAirport (BSL).

• Fastest flight duration: around 11 hours in-flight, plus roughly 3h 15m layover with one stop
• Route distance: roughly 5,200 miles (8,370 km)
• Flights per week: around 7 departures on average
• Typical fares (one-way): economy tickets often range from $255–$640, depending on seasonality and how far ahead you book

Flights from Seattle - Tacoma International Airport (SEA) to EuroAirport (BSL)

According to recent traveler bookings, here are the top airlines favored for one-stop flights from Seattle to Basel. Many passengers opt for connecting flights with popular layovers at Heathrow Airport (LHR) with around a 2-hour stop, Frankfurt International Airport (FRA) which typically has a 3-hour and 30-minute layover, and Franz Josef Strauss International Airport (MUC) with about a 5-hour layover. This allows you to mix and match price, total travel time, and cabin class for the most suitable itinerary.

• British Airways: This full-service airline provides one-stop flights, with one-way ticket prices generally falling between $270 and $645. It operates around 37% of the departures on this route, featuring an in-flight duration of 11 hours and a total travel time of about 14 hours and 15 minutes, including layover.
• United: Offering one-stop service, United is another full-service carrier with one-way fares usually ranging from $265 to $620. It serves approximately 30% of departures on this route, with an in-flight time of 11 hours and a total journey time of around 14 hours and 15 minutes, factoring in the layover.
• Lufthansa: With one-stop service, Lufthansa also functions as a full-service airline, presenting one-way fares that typically range from $290 to $525. It accounts for about 17% of the departures on this route, featuring an in-flight time of 11 hours and a complete travel duration of roughly 14 hours and 15 minutes, including layover.

Alternative routes from Seattle (SEA) to Basel (BSL)

• Seattle to Mulhouse (SEA-MLH): EuroAirport (MLH) is located approximately 0.1 miles from EuroAirport (BSL).
• Seattle to Colmar (SEA-CMR): Houssen Airport (CMR) is positioned roughly 36 miles from EuroAirport (BSL).
• Seattle to Strasbourg (SEA-SXB): Strasbourg International Airport (SXB) lies about 65 miles from EuroAirport (BSL).

How to find the best prices for flights from Seattle (SEA) to Basel (BSL)

Getting some of the best deals on flights from Seattle to Basel is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are usually found when booking 2 to 8 weeks in advance, although most travelers tend to book at least 2 months ahead. Evening departures from 6 PM to 12 AM often offer lower prices, while afternoon flights from 12 PM to 6 PM are more popular. Additionally, flying on Wednesday provides both cheaper prices and is the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.* Find Basel hotel and flight deals.
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at EuroAirport from Seattle - Tacoma International Airport

Basel welcomes travelers from Seattle with a range of transport options based on price, convenience, and proximity. For departures, Seattle - Tacoma International Airport is roughly a 20-minute drive (covering about 14 miles) from central Seattle. Basel city center is approximately a 10-minute drive (covering about 5 miles) from EuroAirport, depending on traffic. Here's how to reach Basel efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Basel, with options including free hotel shuttles and private rides, which can be arranged in advance with your hotel.
• Car rental: Renting a car from EuroAirport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at EuroAirport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From EuroAirport, Saint-Louis La Chaussée Station, a train station, is located about 1.3 miles away by car, while University Tram Stop, a metro station, is situated approximately 4.5 miles from the airport, along with Basel Seaport, a seaport, which is also about 4.5 miles away by car.