Flights to Historic Route 66, United States of America from NT$5,593

View NT$3,017 flight on Wed, 2026/3/18Opens in a new window

Popular airlines

  • Frontier Airlines

  • Delta

  • American Airlines

  • United

  • Southwest Airlines

  • Spirit Airlines

  • Alaska Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 45% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

How much is the cheapest flight to Historic Route 66?

Prices were available within the past 7 days and start at NT$3,017 for one-way flights and NT$5,593 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Apr 22 - Wed, Apr 29
SEA
Seattle
STL
St. Louis
NT$5,593 Roundtrip, found 6 days ago
NT$5,593
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Apr 22 from Seattle to St. Louis, returning Wed, Apr 29, priced at NT$5,593 found 6 days ago
Alaska Airlines
Tue, Mar 17 - Mon, Mar 23
SEA
Seattle
ORD
Chicago
NT$8,372 Roundtrip, found 6 days ago
NT$8,372
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Mar 17 from Seattle to Chicago, returning Mon, Mar 23, priced at NT$8,372 found 6 days ago
United
Tue, Mar 17 - Tue, Mar 24
SEA
Seattle
ORD
Chicago
NT$8,877 Roundtrip, found 5 days ago
NT$8,877
Roundtrip
found 5 days ago
Select United flight, departing Tue, Mar 17 from Seattle to Chicago, returning Tue, Mar 24, priced at NT$8,877 found 5 days ago
American Airlines
Sun, Apr 26 - Sat, May 2
SEA
Seattle
STL
St. Louis
NT$9,378 Roundtrip, found 2 days ago
NT$9,378
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Apr 26 from Seattle to St. Louis, returning Sat, May 2, priced at NT$9,378 found 2 days ago
STARLUX Airlines
Tue, Mar 3 - Tue, Mar 10
TPE
Taipei
FLG
Flagstaff
NT$25,592 Roundtrip, found 1 day ago
NT$25,592
Roundtrip
found 1 day ago
Select STARLUX Airlines flight, departing Tue, Mar 3 from Taipei to Flagstaff, returning Tue, Mar 10, priced at NT$25,592 found 1 day ago

Frequently asked questions

How do I find cheap flights to Historic Route 66 that have flexible change policies?
At Expedia, we've been channeling our inner contortionist to get you the most flexible fares in town. Simply tick the "No change fee" box right under the "Flexible change policies" filter to find your dream flight to Historic Route 66.
How can I find cheap tickets to Historic Route 66?
To get your hands on a great deal to Historic Route 66, book ahead of time. Also take advantage of Expedia's handy "flexible dates" link at the top of your search results. This will display prices for similar time frames. In the last seven days, NT$5,593 was the lowest price for a flight to Historic Route 66.
How much is a flight to Historic Route 66?
In the last seven days, round-trip flights to Historic Route 66 sold from just NT$5,593 and peaked at NT$25,592. For one-way journeys departing from Seattle (SEA), the cheapest seat during this same period was just NT$3,017.
When is the cheapest time to fly to Historic Route 66?
Consider jetting off early in the week to secure a bargain airfare to Historic Route 66. Tuesday is generally the cheapest day to depart, with Monday right behind it. Saturday typically has the most expensive fares. This is because many people choose to kick off their trip on a weekend.
How much is a plane ticket to Historic Route 66?
In the last seven days, plane tickets to Historic Route 66 ranged between NT$5,593 and NT$25,592. The early bird catches the worm, so pick up a terrific deal today.
What months are the cheapest to book a flight to Historic Route 66?
A good month to purchase cheap flights to Historic Route 66 is February. Bear in mind that in the United States, the most expensive time to secure a seat is the festive month of December.
Flights to Historic Route 66 information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
NT$5,593

Trending flights to Historic Route 66

Prices were available within the past 7 days and start at NT$3,017 for one-way flights and NT$5,593 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, May 6 - Wed, May 13
TPE
Taipei
ORD
Chicago
NT$25,250 Roundtrip, found 9 hours ago
NT$25,250
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 6 from Taipei to Chicago, returning Wed, May 13, priced at NT$25,250 found 9 hours ago
*Available to Expedia members.