Singapore Airlines Flight 638 Deals & Information (2025/2026)

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Singapore Airlines Flight 638 Route Deals From $306

The cheapest prices found with in the last 7 days for return flights were $574 and $306 for one-way flights to Narita Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Feb 2 - Mon, Feb 9
SIN
Changi
NRT
Narita Intl.
$574 Roundtrip, found 3 days ago
$574
Roundtrip
found 3 days ago
Select Singapore Airlines flight, departing Mon, Feb 2 from Changi to Narita Intl., returning Mon, Feb 9, priced at $574 found 3 days ago

Frequently asked questions

What route does flight number SQ638 take?
Flight number SQ638 takes roughly 7 hours and 5 minutes to fly direct from Singapore Airport (SIN-Changi) to Tokyo Narita Airport. Sure, there's magic in the destination, but half the fun is in the journey!
What terminal does SQ638 fly out of?
Travelers with a booking on flight number SQ638 from SIN to Tokyo Airport (NRT-Narita Intl.) typically fly out of Terminal 3.
What kind of plane is on flight number SQ638?
Get set to jump on board a Boeing 787 if you've booked a seat on flight SQ638. Almost all services from Singapore Airport (SIN-Changi) to NRT use this model of aircraft.
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 SQ638 flight with Travelocity, please visit our Customer Service Portal.