EXPIRED

Seattle to Basel, Switzerland for only $443 roundtrip

Missed the deal?

Register for FREE to receive instant alerts to your inbox the moment we publish a flight deal.

You'll never miss a Secret Flying deal again.

Cheap flights from Seattle to Zurich, Switzerland for only $443 roundtrip with KLM.

DEPART:
Seattle, USA

ARRIVE:
Basel, Switzerland

RETURN:
Seattle, USA

DATES:
Availability from April to May 2018

Example dates:
1st-15th Apr
3rd-18th Apr
4th-19th Apr
8th-21st Apr
11th-22nd Apr
20th Apr – 4th May
22nd Apr – 7th May
30th Apr – 10th May
30th Apr – 13th May
2nd-14th May
2nd-16th May
2nd-17th May
4th-14th May
4th-18th May
4th-19th May
6th-16th May
6th-19th May
9th-20th May
9th-21st May
9th-23rd May
20th-30th May

and more…

STOPS:
Amsterdam

AIRLINES:
KLM

Allow the search to complete, then click an OTA to view the advertised price: