United Flight 400 Deals & Information (2026/2027)

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United Flight 400 Route Deals From $378

The cheapest prices found with in the last 7 days for return flights were $450 and $378 for one-way flights to Newark Liberty Intl. Airport for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$450 Roundtrip, found 4 days ago
$450
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $450 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$460 Roundtrip, found 4 days ago
$460
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $460 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$472 Roundtrip, found 4 days ago
$472
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $472 found 4 days ago
Wed, Mar 25 - Tue, Mar 31
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$475 Roundtrip, found 6 days ago
$475
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Jackson Hole to Newark Liberty Intl. Airport, returning Tue, Mar 31, priced at $475 found 6 days ago
Wed, Mar 11 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$476 Roundtrip, found 4 days ago
$476
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 11 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $476 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$481 Roundtrip, found 4 days ago
$481
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $481 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$482 Roundtrip, found 4 days ago
$482
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $482 found 4 days ago
Wed, Mar 25 - Tue, Mar 31
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$485 Roundtrip, found 6 days ago
$485
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Jackson Hole to Newark Liberty Intl. Airport, returning Tue, Mar 31, priced at $485 found 6 days ago
Wed, Mar 25 - Tue, Mar 31
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$485 Roundtrip, found 6 days ago
$485
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Jackson Hole to Newark Liberty Intl. Airport, returning Tue, Mar 31, priced at $485 found 6 days ago
Wed, Mar 11 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$486 Roundtrip, found 4 days ago
$486
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 11 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $486 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$496 Roundtrip, found 4 days ago
$496
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $496 found 4 days ago
Wed, Mar 25 - Tue, Mar 31
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$505 Roundtrip, found 6 days ago
$505
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Jackson Hole to Newark Liberty Intl. Airport, returning Tue, Mar 31, priced at $505 found 6 days ago
Wed, Mar 11 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$507 Roundtrip, found 4 days ago
$507
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 11 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $507 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$516 Roundtrip, found 4 days ago
$516
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $516 found 4 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$518 Roundtrip, found 4 days ago
$518
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $518 found 4 days ago
Wed, Mar 11 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$522 Roundtrip, found 4 days ago
$522
Roundtrip
found 4 days ago
Select United flight, departing Wed, Mar 11 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $522 found 4 days ago
Wed, Mar 25 - Tue, Mar 31
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$524 Roundtrip, found 6 days ago
$524
Roundtrip
found 6 days ago
Select United flight, departing Wed, Mar 25 from Jackson Hole to Newark Liberty Intl. Airport, returning Tue, Mar 31, priced at $524 found 6 days ago
Tue, Mar 10 - Sat, Mar 14
JAC
Jackson Hole
EWR
Newark Liberty Intl. Airport
$526 Roundtrip, found 4 days ago
$526
Roundtrip
found 4 days ago
Select United flight, departing Tue, Mar 10 from Jackson Hole to Newark Liberty Intl. Airport, returning Sat, Mar 14, priced at $526 found 4 days ago

Frequently asked questions

What route does flight number UA400 take?
UA400 operates from Dulles Intl. Airport to Raleigh–Durham Airport and is a direct flight. This trip takes 1 hour and 11 minutes.
What kind of plane is on flight number UA400?
The route for flight number UA400 is generally Dulles Intl. Airport to RDU, and the Boeing 737-800 is the aircraft model you'll probably be flying with.
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 UA400 flight with Travelocity, please visit our Customer Service Portal.