American Airlines Flight VS100 Deals & Information (2025/2026)

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American Airlines Flight 100 Route Deals From $354

The cheapest prices found with in the last 7 days for return flights were $557 and $354 for one-way flights to Heathrow for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 28 - Sun, Oct 5
JFK
John F. Kennedy Intl.
LHR
Heathrow
$557 Roundtrip, found 1 day ago
$557
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sun, Sep 28 from John F. Kennedy Intl. to Heathrow, returning Sun, Oct 5, priced at $557 found 1 day ago

Frequently asked questions

What route does flight number AA100 take?
AA100 flies straight from JFK Airport to Heathrow Airport. During this journey, expect to be in the air for roughly 7 hours and 13 minutes. It pays to book ahead to lock in your preferred seat.
How often is AA100 on time?
American Airlines flight number AA100 from New York, NY Airport (JFK-John F. Kennedy Intl.) to Heathrow Airport operates on schedule 95% of the time — so you can relax with confidence knowing that you’ll touch down at your destination ASAP. If your journey happens to be delayed, you’re likely to wait about 17 minutes. This route has a star rating of 4.25.
What terminal does AA100 fly out of?
Flight number AA100 runs between John F. Kennedy Intl. Airport (JFK) and Heathrow Airport, and travelers taking this flight commonly jet off from Terminal 8.
What kind of plane is on flight number AA100?
The route for flight number AA100 is nearly always New York, NY Airport (JFK-John F. Kennedy Intl.) to Heathrow Airport (LHR), and the Boeing 777-300ER is the type of plane you’re likely to be traveling on.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your AA100 flight with Travelocity, please visit our Customer Service Portal.