United Flight UA1789 Deals & Information (2025/2026)

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United Flight 1789 Route Deals From $98

The cheapest prices found with in the last 7 days for return flights were $189 and $98 for one-way flights to San Antonio Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Aug 30 - Mon, Sep 1
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$189 Roundtrip, found 5 days ago
$189
Roundtrip
found 5 days ago
Select United flight, departing Sat, Aug 30 from Washington Dulles Intl. to San Antonio Intl., returning Mon, Sep 1, priced at $189 found 5 days ago
Sat, Sep 20 - Sat, Sep 27
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$191 Roundtrip, found 13 hours ago
$191
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Sep 20 from Washington Dulles Intl. to San Antonio Intl., returning Sat, Sep 27, priced at $191 found 13 hours ago
Tue, Aug 19 - Tue, Sep 9
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$193 Roundtrip, just found
$193
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Washington Dulles Intl. to San Antonio Intl., returning Tue, Sep 9, priced at $193 just found
Tue, Aug 19 - Tue, Sep 9
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$198 Roundtrip, just found
$198
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Washington Dulles Intl. to San Antonio Intl., returning Tue, Sep 9, priced at $198 just found
Thu, Sep 25 - Mon, Sep 29
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$199 Roundtrip, found 2 days ago
$199
Roundtrip
found 2 days ago
Select United flight, departing Thu, Sep 25 from Washington Dulles Intl. to San Antonio Intl., returning Mon, Sep 29, priced at $199 found 2 days ago
Sat, Sep 20 - Sat, Sep 27
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$200 Roundtrip, found 13 hours ago
$200
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Sep 20 from Washington Dulles Intl. to San Antonio Intl., returning Sat, Sep 27, priced at $200 found 13 hours ago
Tue, Aug 19 - Tue, Sep 9
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$202 Roundtrip, just found
$202
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Washington Dulles Intl. to San Antonio Intl., returning Tue, Sep 9, priced at $202 just found
Tue, Aug 19 - Tue, Sep 9
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$207 Roundtrip, just found
$207
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Washington Dulles Intl. to San Antonio Intl., returning Tue, Sep 9, priced at $207 just found
Sat, Sep 20 - Sat, Sep 27
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$210 Roundtrip, found 13 hours ago
$210
Roundtrip
found 13 hours ago
Select United flight, departing Sat, Sep 20 from Washington Dulles Intl. to San Antonio Intl., returning Sat, Sep 27, priced at $210 found 13 hours ago
Tue, Aug 19 - Tue, Sep 9
IAD
Washington Dulles Intl.
SAT
San Antonio Intl.
$212 Roundtrip, just found
$212
Roundtrip
just found
Select United flight, departing Tue, Aug 19 from Washington Dulles Intl. to San Antonio Intl., returning Tue, Sep 9, priced at $212 just found