The most affordable flight from Penang (PEN-Penang Intl.) was to Singapore (SIN) at RM72. With Expedia, you can compare flights from different airlines after you've entered your preferred dates and destination. You can sort your results by price and narrow your search using the "Filter by" function. These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply. You'll always snag a great deal with Expedia, but our "Flexible dates" tool makes it even simpler. First, enter your destination and flight dates. Then, click on the flexible dates box above the search results to see the cheapest prices for days surrounding your trip. If you want to refine your search and potentially unlock bigger savings, you can filter by specific flight times, airline preference and more.