Air India Flight 173 Deals & Information (2025/2026)

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Air India Flight 173 Route Deals From $473

The cheapest prices found with in the last 7 days for return flights were $722 and $473 for one-way flights to San Francisco Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, Sep 21 - Sat, Feb 7
DEL
Indira Gandhi Intl.
SFO
San Francisco Intl.
$722 Roundtrip, found 2 days ago
$722
Roundtrip
found 2 days ago
Select Air India flight, departing Sun, Sep 21 from Indira Gandhi Intl. to San Francisco Intl., returning Sat, Feb 7, priced at $722 found 2 days ago
Mon, Oct 6 - Fri, Feb 13
DEL
Indira Gandhi Intl.
SFO
San Francisco Intl.
$773 Roundtrip, found 23 hours ago
$773
Roundtrip
found 23 hours ago
Select Air India flight, departing Mon, Oct 6 from Indira Gandhi Intl. to San Francisco Intl., returning Fri, Feb 13, priced at $773 found 23 hours ago

Frequently asked questions

What route does flight number AI173 take?
AI173 takes around 16 hours to jet straight from Delhi Airport to San Francisco Intl. Airport (SFO). Sure, there's magic in the destination, but getting there is half the fun!
What terminal does AI173 fly out of?
AI173 runs between Delhi Airport and SFO, and passengers booked on this flight normally board the aircraft from Terminal 3.
What kind of plane is on flight number AI173?
The route for flight number AI173 is generally Indira Gandhi Intl. Airport (DEL) to San Francisco Intl. Airport (SFO), and the Boeing 777-300ER is the type of plane you'll probably be flying on.
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 AI173 flight with Travelocity, please visit our Customer Service Portal.