Cheap Swiss International Air Lines flights from Lisbon to Washington (LIS to IAD)

Find The Best Day To Fly from Lisbon to Washington

Amazing Swiss International Air Lines LIS to IAD Flight Deals

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $579 round trip and one way. Prices and availability subject to change. Additional terms may apply.

Thu, Sep 11 - Sat, Sep 27
LIS
Lisbon
IAD
Washington
$579 Roundtrip, just found
$579
Roundtrip
just found
Select Swiss International Air Lines flight, departing Thu, Sep 11 from Lisbon to Washington, returning Sat, Sep 27, priced at $579 just found
Tue, Dec 23 - Tue, Jan 6
LIS
Lisbon
IAD
Washington
$582 Roundtrip, found 4 hours ago
$582
Roundtrip
found 4 hours ago
Select Swiss International Air Lines flight, departing Tue, Dec 23 from Lisbon to Washington, returning Tue, Jan 6, priced at $582 found 4 hours ago
Wed, Oct 8 - Sun, Oct 12
LIS
Lisbon
IAD
Washington
$584 Roundtrip, found 1 hour ago
$584
Roundtrip
found 1 hour ago
Select Swiss International Air Lines flight, departing Wed, Oct 8 from Lisbon to Washington, returning Sun, Oct 12, priced at $584 found 1 hour ago
Thu, Sep 11 - Sat, Sep 27
LIS
Lisbon
IAD
Washington
$586 Roundtrip, just found
$586
Roundtrip
just found
Select Swiss International Air Lines flight, departing Thu, Sep 11 from Lisbon to Washington, returning Sat, Sep 27, priced at $586 just found
Wed, Nov 19 - Tue, Dec 2
LIS
Lisbon
IAD
Washington
$588 Roundtrip, found 1 day ago
$588
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Wed, Nov 19 from Lisbon to Washington, returning Tue, Dec 2, priced at $588 found 1 day ago
Wed, Oct 8 - Sun, Oct 12
LIS
Lisbon
IAD
Washington
$590 Roundtrip, found 1 hour ago
$590
Roundtrip
found 1 hour ago
Select Swiss International Air Lines flight, departing Wed, Oct 8 from Lisbon to Washington, returning Sun, Oct 12, priced at $590 found 1 hour ago
Swiss International Air Lines Airports
Hop on a(n) Swiss International Air Lines flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ZRHCHEZurich9
FRADEUFrankfurt Intl.3
PVGCHNPudong Intl.3
LHRGBRHeathrow3
GVACHECointrin Intl.2
EWRUSALiberty Intl.2
SINSGPChangi2
HNDJPNHaneda1
ARNSWEArlanda1
HAMDEUHamburg1

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4 out of 5
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This hotel features an indoor pool, A 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public ...
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Hyatt Place Herndon Dulles Airport East

3 out of 5
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Hyatt Place Herndon Dulles Airport East
Courtyard by Marriott Dulles Airport Herndon

Courtyard by Marriott Dulles Airport Herndon

3 out of 5
13715 Sayward Blvd, Herndon, VA
This hotel features a restaurant, a 24-hour gym, and a bar/lounge. Traveling on business? Take advantage of the business center, free WiFi in public areas, and ...
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Airport stay
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Reviewed on Jul 15, 2025

Courtyard by Marriott Dulles Airport Herndon
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.