United Flight 539 Deals & Information (2025/2026)

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United Flight 539 Route Deals From $69

The cheapest prices found with in the last 7 days for return flights were $137 and $69 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 2 - Thu, Sep 4
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$137 Roundtrip, found 9 hours ago
$137
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Sep 2 from Logan Intl. to Washington Dulles Intl., returning Thu, Sep 4, priced at $137 found 9 hours ago
Sat, Dec 6 - Mon, Dec 8
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$144 Roundtrip, found 3 days ago
$144
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 6 from Logan Intl. to Washington Dulles Intl., returning Mon, Dec 8, priced at $144 found 3 days ago
Sat, Aug 23 - Mon, Aug 25
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$147 Roundtrip, found 1 hour ago
$147
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Aug 23 from Logan Intl. to Washington Dulles Intl., returning Mon, Aug 25, priced at $147 found 1 hour ago
Tue, Sep 2 - Thu, Sep 4
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$147 Roundtrip, found 9 hours ago
$147
Roundtrip
found 9 hours ago
Select United flight, departing Tue, Sep 2 from Logan Intl. to Washington Dulles Intl., returning Thu, Sep 4, priced at $147 found 9 hours ago
Tue, Aug 5 - Thu, Aug 7
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$149 Roundtrip, found 8 hours ago
$149
Roundtrip
found 8 hours ago
Select United flight, departing Tue, Aug 5 from Logan Intl. to Washington Dulles Intl., returning Thu, Aug 7, priced at $149 found 8 hours ago
Wed, Sep 17 - Sun, Sep 21
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$152 Roundtrip, found 6 days ago
$152
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 17 from Logan Intl. to Washington Dulles Intl., returning Sun, Sep 21, priced at $152 found 6 days ago
Sat, Dec 6 - Mon, Dec 8
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$154 Roundtrip, found 3 days ago
$154
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 6 from Logan Intl. to Washington Dulles Intl., returning Mon, Dec 8, priced at $154 found 3 days ago
Sat, Nov 1 - Wed, Nov 5
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$155 Roundtrip, found 3 days ago
$155
Roundtrip
found 3 days ago
Select United flight, departing Sat, Nov 1 from Logan Intl. to Washington Dulles Intl., returning Wed, Nov 5, priced at $155 found 3 days ago
Sat, Aug 23 - Mon, Aug 25
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$156 Roundtrip, found 1 hour ago
$156
Roundtrip
found 1 hour ago
Select United flight, departing Sat, Aug 23 from Logan Intl. to Washington Dulles Intl., returning Mon, Aug 25, priced at $156 found 1 hour ago
Wed, Aug 6 - Sat, Aug 9
BOS
Logan Intl.
IAD
Washington Dulles Intl.
$162 Roundtrip, found 12 hours ago
$162
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Aug 6 from Logan Intl. to Washington Dulles Intl., returning Sat, Aug 9, priced at $162 found 12 hours ago

Frequently asked questions

What route does flight number UA539 take?
UA539 serves multiple routes, but the most common is between San Francisco Intl. Airport (SFO) and Kahului Airport. If you manage to score a direct flight, you'll disembark the plane in approximately 5 hours and 25 minutes. Multi-stop flights can also travel under this number, as can flights on other routes.
What terminal does UA539 fly out of?
You'll likely board the plane from Terminal 3 if you're booked on a flight out of San Francisco, CA Airport (SFO-San Francisco Intl.). UA539 serves a number of different routes, but the direct flight between San Francisco, CA Airport (SFO-San Francisco Intl.) and Kahului, HI Airport (OGG) is the most frequently traveled.
What kind of plane is on flight number UA539?
UA539 is a flight number that serves many different routes. If you're booked on the most common route, San Francisco, CA Airport (SFO-San Francisco Intl.) to Kahului, HI Airport (OGG), you'll likely be climbing aboard a Boeing 737-800.
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 UA539 flight with Travelocity, please visit our Customer Service Portal.