United Flight UA2403 Deals & Information (2025/2026)

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United Flight 2403 Route Deals From $99

The cheapest prices found with in the last 7 days for return flights were $197 and $99 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 17 - Fri, Oct 24
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$197 Roundtrip, found 11 hours ago
$197
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Oct 17 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Fri, Oct 24, priced at $197 found 11 hours ago
Fri, Oct 17 - Fri, Oct 24
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$200 Roundtrip, found 11 hours ago
$200
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Oct 17 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Fri, Oct 24, priced at $200 found 11 hours ago
Wed, Oct 1 - Thu, Oct 2
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$201 Roundtrip, just found
$201
Roundtrip
just found
Select United flight, departing Wed, Oct 1 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Thu, Oct 2, priced at $201 just found
Wed, Nov 5 - Tue, Nov 11
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$209 Roundtrip, found 18 hours ago
$209
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Nov 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Tue, Nov 11, priced at $209 found 18 hours ago
Sun, Oct 5 - Wed, Oct 8
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$215 Roundtrip, found 1 hour ago
$215
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Oct 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Wed, Oct 8, priced at $215 found 1 hour ago
Wed, Nov 19 - Thu, Nov 27
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$218 Roundtrip, found 5 hours ago
$218
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Nov 19 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Thu, Nov 27, priced at $218 found 5 hours ago
Sun, Oct 5 - Wed, Oct 8
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$224 Roundtrip, found 1 hour ago
$224
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Oct 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Wed, Oct 8, priced at $224 found 1 hour ago
Sun, Oct 5 - Wed, Oct 8
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$226 Roundtrip, found 1 hour ago
$226
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Oct 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Wed, Oct 8, priced at $226 found 1 hour ago
Wed, Nov 19 - Thu, Nov 27
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$228 Roundtrip, found 5 hours ago
$228
Roundtrip
found 5 hours ago
Select United flight, departing Wed, Nov 19 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Thu, Nov 27, priced at $228 found 5 hours ago
Tue, Sep 30 - Fri, Oct 3
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$230 Roundtrip, found 18 hours ago
$230
Roundtrip
found 18 hours ago
Select United flight, departing Tue, Sep 30 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Fri, Oct 3, priced at $230 found 18 hours ago
Wed, Oct 8 - Thu, Oct 9
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$231 Roundtrip, found 1 hour ago
$231
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Oct 8 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Thu, Oct 9, priced at $231 found 1 hour ago
Wed, Nov 5 - Tue, Nov 11
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$235 Roundtrip, found 18 hours ago
$235
Roundtrip
found 18 hours ago
Select United flight, departing Wed, Nov 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Tue, Nov 11, priced at $235 found 18 hours ago
Tue, Oct 21 - Mon, Oct 27
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$239 Roundtrip, found 1 day ago
$239
Roundtrip
found 1 day ago
Select United flight, departing Tue, Oct 21 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Mon, Oct 27, priced at $239 found 1 day ago
Sun, Oct 5 - Wed, Oct 8
EWR
Newark Liberty Intl. Airport
SEA
Seattle - Tacoma Intl.
$240 Roundtrip, found 1 hour ago
$240
Roundtrip
found 1 hour ago
Select United flight, departing Sun, Oct 5 from Newark Liberty Intl. Airport to Seattle - Tacoma Intl., returning Wed, Oct 8, priced at $240 found 1 hour ago

Frequently asked questions

What route does flight number UA2403 take?
UA2403 takes multiple routes. The most popular is between EWR and Orlando Intl. Airport (MCO), which flies direct. This service takes about 2 hours and 45 minutes. That said, there may be other flights with this number that have one or more stops.
What terminal does UA2403 fly out of?
UA2403 flights out of Liberty Intl. Airport (EWR) typically leave from Terminal C. This flight number runs on a number of routes, but the most popular one is Liberty Intl. Airport (EWR) to Orlando Intl. Airport (MCO).
What kind of plane is on flight number UA2403?
It's likely you'll be heading off on the Boeing 737-900 if you've booked a ticket from EWR to Orlando, FL Airport (MCO-Orlando Intl.), one of several routes used for flight UA2403.
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 UA2403 flight with Travelocity, please visit our Customer Service Portal.