United Flight 450 Deals & Information (2026/2027)

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United Flight 450 Route Deals From $93

The cheapest prices found with in the last 7 days for return flights were $181 and $93 for one-way flights to Baltimore Washington Intl. Thurgood Marshall for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Jun 16 - Tue, Jun 23
ORD
O'Hare Intl.
BWI
Baltimore Washington Intl. Thurgood Marshall
$181 Roundtrip, found 1 day ago
$181
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jun 16 from O'Hare Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Tue, Jun 23, priced at $181 found 1 day ago
Wed, Jun 17 - Wed, Jun 24
ORD
O'Hare Intl.
BWI
Baltimore Washington Intl. Thurgood Marshall
$218 Roundtrip, found 2 hours ago
$218
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Jun 17 from O'Hare Intl. to Baltimore Washington Intl. Thurgood Marshall, returning Wed, Jun 24, priced at $218 found 2 hours ago

Frequently asked questions

What route does flight number UA450 take?
UA450 serves multiple routes, but the most common is between San Francisco Airport and Denver Intl. Airport (DEN). If your flight is direct, you'll disembark the plane in 2 hours and 29 minutes. Multi-stop flights can also use the same number, as can services on other routes.
What terminal does UA450 fly out of?
You'll probably board the aircraft from Terminal 3 if you're beginning your journey at San Francisco Airport. UA450 serves several routes, but the direct flight between San Francisco Airport and Denver, CO Airport (DEN-Denver Intl.) is the most popular.
What kind of plane is on flight number UA450?
If you're on flight UA450 from San Francisco Intl. Airport (SFO) to DEN, there's an excellent chance you'll be traveling on the Boeing 737-800. Flight UA450 serves a number of different routes, but this is the most popular one.
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 UA450 flight with Travelocity, please visit our Customer Service Portal.