Bandaranaike International offers nonstop service to 49 destinations, served by 32 airlines.
| Destination | Code | Country | Distance | Duration | Airlines |
|---|---|---|---|---|---|
| Madurai | IXM | India | 354 km | 0h 55m | UL |
| Thiruvananthapuram | TRV | India | 357 km | 1h 0m | UL |
| Tiruchirappalli | TRZ | India | 417 km | 1h 0m | UL |
| Kochi | COK | India | 506 km | 1h 10m | UL |
| Coimbatore | CJB | India | 529 km | 1h 5m | UL |
| Chennai | MAA | India | 643 km | 1h 25m | 6E, UL |
| Bengaluru | BLR | India | 707 km | 1h 25m | 6E, UL |
| Male | MLE | Maldives | 777 km | 1h 25m | EK, SV, UL, GF, FZ, 8D, W2, OQ |
| Hyderabad | HYD | India | 1,124 km | 1h 55m | UL, 6E |
| Gan Island | GAN | Maldives | 1,146 km | 1h 50m | UL |
| Mumbai | BOM | India | 1,521 km | 2h 35m | UL, AI, 6E |
| Ahmedabad | AMD | India | 1,922 km | 3h 10m | 8D |
| Dhaka | DAC | Bangladesh | 2,160 km | 3h 15m | UL, 8D, W2 |
| Kathmandu | KTM | Nepal | 2,344 km | 3h 30m | UL |
| Karachi | KHI | Pakistan | 2,383 km | 3h 25m | UL |
| Delhi | DEL | India | 2,384 km | 3h 35m | AI, UL, 6E |
| Bangkok | DMK | Thailand | 2,385 km | 3h 25m | FD |
| Bangkok | BKK | Thailand | 2,393 km | 3h 40m | TG, UL, 8D |
| Kuala Lumpur | KUL | Malaysia | 2,469 km | 3h 50m | AK, MH, OD, UL, 8D, W2 |
| Singapore | SIN | Singapore | 2,750 km | 4h 10m | SQ, UL |
| Lahore | LHE | Pakistan | 2,755 km | 3h 55m | UL, 8D, W2 |
| Muscat | MCT | Oman | 2,938 km | 4h 15m | OV |
| Mahe Island | SEZ | Seychelles | 3,008 km | 4h 15m | HM |
| Kunming | KMG | China | 3,153 km | 5h 3m | MU |
| Sharjah | SHJ | United Arab Emirates | 3,276 km | 4h 40m | G9 |
| Dubai | DXB | United Arab Emirates | 3,286 km | 4h 40m | EK, FZ, UL, 8D, W2 |
| Abu Dhabi | AUH | United Arab Emirates | 3,298 km | 4h 30m | EY, 3L |
| Jakarta | CGK | Indonesia | 3,317 km | 4h 40m | UL |
| Doha | DOH | Qatar | 3,610 km | 4h 50m | QR, UL |
| Chengdu | TFU | China | 3,623 km | 5h 18m | CA |
| Chongqing | CKG | China | 3,750 km | 5h 15m | OQ |
| Dammam | DMM | Saudi Arabia | 3,834 km | 5h 20m | UL |
| Guangzhou | CAN | China | 3,995 km | 6h 0m | UL |
| Hong Kong | HKG | Hong Kong SAR | 4,015 km | 5h 25m | CX |
| Riyadh | RUH | Saudi Arabia | 4,040 km | 5h 35m | UL |
| Kuwait | KWI | Kuwait | 4,140 km | 5h 40m | KU, UL, J9 |
| Jeddah | JED | Saudi Arabia | 4,657 km | 6h 30m | SV |
| Shanghai | PVG | China | 5,098 km | 6h 58m | MU |
| Beijing | PKX | China | 5,110 km | 7h 5m | JD |
| Seoul | ICN | Republic of Korea | 5,765 km | 8h 15m | UL |
| Istanbul | IST | Turkiye | 6,293 km | 8h 35m | TK |
| Moscow | SVO | Russia | 6,567 km | 8h 50m | SU |
| Tokyo | NRT | Japan | 6,897 km | 8h 50m | UL |
| Zurich | ZRH | Switzerland | 8,022 km | 11h 0m | WK |
| Frankfurt | FRA | Germany | 8,068 km | 11h 0m | UL |
| Melbourne | MEL | Australia | 8,352 km | 9h 50m | UL, JQ |
| Paris | CDG | France | 8,485 km | 11h 0m | UL |
| London | LHR | United Kingdom | 8,718 km | 11h 50m | UL |
| Sydney | SYD | Australia | 8,759 km | 10h 5m | UL |