United Flight UA4178 Deals & Information (2025/2026)

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United Flight 4178 Route Deals From $214

The cheapest prices found with in the last 7 days for return flights were $189 and $214 for one-way flights to Washington Dulles Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 24 - Mon, Oct 27
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$189 Roundtrip, found 7 hours ago
$189
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 24 from Burlington Intl. to Washington Dulles Intl., returning Mon, Oct 27, priced at $189 found 7 hours ago
Thu, Jul 31 - Tue, Aug 5
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$193 Roundtrip, found 1 day ago
$193
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 31 from Burlington Intl. to Washington Dulles Intl., returning Tue, Aug 5, priced at $193 found 1 day ago
Fri, Oct 24 - Mon, Oct 27
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$194 Roundtrip, found 7 hours ago
$194
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 24 from Burlington Intl. to Washington Dulles Intl., returning Mon, Oct 27, priced at $194 found 7 hours ago
Wed, Jul 2 - Sat, Jul 5
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$198 Roundtrip, found 5 days ago
$198
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jul 2 from Burlington Intl. to Washington Dulles Intl., returning Sat, Jul 5, priced at $198 found 5 days ago
Fri, Oct 24 - Mon, Oct 27
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$199 Roundtrip, found 7 hours ago
$199
Roundtrip
found 7 hours ago
Select United flight, departing Fri, Oct 24 from Burlington Intl. to Washington Dulles Intl., returning Mon, Oct 27, priced at $199 found 7 hours ago
Thu, Jul 31 - Tue, Aug 5
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$203 Roundtrip, found 1 day ago
$203
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jul 31 from Burlington Intl. to Washington Dulles Intl., returning Tue, Aug 5, priced at $203 found 1 day ago
Wed, Jul 2 - Sat, Jul 5
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$203 Roundtrip, found 5 days ago
$203
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jul 2 from Burlington Intl. to Washington Dulles Intl., returning Sat, Jul 5, priced at $203 found 5 days ago
Fri, Oct 24 - Wed, Oct 29
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$204 Roundtrip, found 15 hours ago
$204
Roundtrip
found 15 hours ago
Select United flight, departing Fri, Oct 24 from Burlington Intl. to Washington Dulles Intl., returning Wed, Oct 29, priced at $204 found 15 hours ago
Wed, Jul 2 - Sat, Jul 5
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$208 Roundtrip, found 5 days ago
$208
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jul 2 from Burlington Intl. to Washington Dulles Intl., returning Sat, Jul 5, priced at $208 found 5 days ago
Wed, Jul 23 - Mon, Aug 4
BTV
Burlington Intl.
IAD
Washington Dulles Intl.
$208 Roundtrip, found 4 days ago
$208
Roundtrip
found 4 days ago
Select United flight, departing Wed, Jul 23 from Burlington Intl. to Washington Dulles Intl., returning Mon, Aug 4, priced at $208 found 4 days ago